TAPTITE II 三角自攻螺丝标准_图文

TAPTITE II® SCREWS

TAPTITE II® TRILOBULAR™ thread-rolling screws roll-form

strong, high integrity threads in drilled, punched or cored

holes in ductile metals and castings. As each lobe of a

TAPTITE II® screw moves through the pilot hole in the nut

material, it forms and work-hardens the nut thread metal

producing an uninterrupted grain flow. By elastic recovery,

metal fills in behind the lobe, providing a greater area of

thread contact with exceptional vibration resistance and

fastening strength.

Pages 4 & 5 Advantages Applications

Practically eliminates chips. Low

All ductile metals, die castings

drive torque; high strip-to-drive

and punch extruded metals.

ratio. Excellent resistance to

vibrational loosening. Elimina-tion of add-on locking devices.

Reusable. Lower in-place

fastener costs.

DUO-TAPTITE® SCREWS

DUO-TAPTITE® TRILOBULAR™ thread-rolling screws have

generous lobulation at the screw point for easy entry and

optimum forming action plus reduced lobulation in the

screw body for increased holding power. A stabilizing

thread insures ready, aligned entry into the pilot hole, with

easy pickup and minimal starting end load. In extensive

laboratory tests, DUO-TAPTITE® screws consistently sur-pass conventional thread-forming fasteners in every area of

demanding performance.

Pages 6 & 7 Advantages Applications

Easy entry, positive alignment

All ductile metals, die castings

and consistent starting stability.

and punch extruded metals.

Lower starting end pressure.

Higher strip-to-drive ratio.

Higher prevailing torque. Excel-lent resistance to vibrational

loosening.

EXTRUDE-TITE®, TAPTITE CA® SCREWS

TAPTITE® CA Point TRILOBULAR™ thread rolling screws

have a gimlet point for use when clearance holes and pilot

holes are not in line. EXTRUDE-TITE® screws have less

TRILOBULAR™ shape and also have a gimlet point for use in

more demanding sheet metal applications or in applications

with minimal length of engagement. Either fastener can be

supplied case hardened for normal use or as a CORFLEX®-I

product for structural applications.

Pages 5, 13 & 14 Advantages Applications

Low starting torque and initial For extremely rapid hole

end load, desirable features with finding; for applications with

large diameter fasteners, are floating nut members; where

provided by a second thread clearance and pilot holes are

forming taper and by the initially out of line; or where a

sheet of material (gasket, TAPTITE II® step in the point.

Vibration resistant.

carpet) must be pierced.

POWERLOK®, KLEERLOK® SCREWS

POWERLOK® TRILOBULAR™, thread-locking screws

incorporate unique threads dimensioned to provided

locking in tapped holes. A 30° thread-locking crest is

superimposed on the normal 60° thread. This design,

including a short tapered lead, allows hand starting in a

tapped hole, adjustment and alignment of parts, and an

exceptionally powerful locking action.

Pages 15 & 16 Advantages

Locking action at thread periphery

provides optimum holding power,

even without seating of the head.

Easy starting by hand and easy

driving. Exceeds IFI locking

standards. Extreme resistance to

vibrational loosening.

Applications

All pre-tapped metal nuts, die

castings and punch extruded

assemblies where reliable,

self-locking fasteners are

required under conditions of

severe vibration or high clamp

load.

PLASTITE 45®, 48-2 SCREWS

PLASTITE® 45 TRILOBULAR™ thread rolling screws have

extra wide spacing between narrow profile threads,

resulting in exceptionally low induced stress and extra

low boss bursting tendencies.

TRILOBULAR™ thread form design provides full relief for

easy driving and effective resistance to vibrational

loosening. PLASTITE® 45 screws provide wide differen-tial between drive and fail torques for exceptionally easy

drive tool adjustment. Screws are manufactured to

nominal inch and metric diameters.

Pages 17, 18 & 19 Advantages Applications

Easy driving. Excellent holding power. Thermoplastics, engineering

Reduced danger of burst bosses and resins and certain

induced stress. Easy power tool thermosets. In cases where

adjustment. Stronger internal length of engagement is one

threads: formed, not cut. No chips diameter or more.

produced. Greater holding power.

Reduced hoop stress and fewer burst

bosses. Higher holding torque elimi-nates need for inserts or reinforcing

clips. Allows for repeated removal

PUSHTITE® II SCREWS

PUSHTITE® II thread-forming fasteners are designed to be

pressed into recommended hole sizes with a single, straight-line stroke. They have a TRILOBULAR™ thread form com-bined with a 70°-10° semi-buttress thread shape to permit

easy straight-line entry and provide exceptional pullout resis-tance. Threads are helical, not annular, permitting displaced

air to escape during insertion. The helical thread also allows

the fasteners to be removed and reinserted, if necessary.

The TRILOBULAR™ shape insures high prevailing off-torque.

Page 20 Advantages Applications

Fast installation. No drive torque or The resilient thermoplastics

torque related problems and costs. and several engineering

Easy removal and reinsertion. Fewer grades. Component and

burst bosses. Reduced in-place boss design should allow for

costs. the stroke force.

CORFLEX® - TAPTITE II® SCREWS or

DUO-TAPTITE®

SCREWS AND BOLTS

Page 21 Advantages Applications

CORFLEX® TRILOBULAR™ thread-rolling screws combine good bending toughness,

resistance to high alternating load stresses and ability to easily form threads in

deep, untapped holes, with excellent resistance to vibrational loosening. These

high-durability, structural screws are made from alloy steel, neutral-hardened to

individual specifications, such as SAE grades 5 or 8 or metric 9.8 and 10.9.

Thread-forming lead threads are induction hardened for thread-rolling capability.

Excellent resistance to shock and

Recommended for critical or structural assemblies

alternating loads. TRILOBULAR™

subject to vibration, shear stress, alternating

thread-forming capability in heavy

loads, stress corrosion and rapid temperature

sections. Custom heat-treated to

fluctuations. For use when a neutral-hardened

specific hardness/toughness

thread rolling screw is preferred over a conven-tional carburized and tempered fastener.

requirements.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Originators of the TRILOBULAR™ Family of Fasteners

Providing Technical Support, Marketing Support and

Innovative Fastener Design

Reduced In-Place Cost!!

TAPTITE II®

and DUO-TAPTITE®

thread rolling screws reduce in-place fastener costs and provide

vibration resistant assemblies. TAPTITE II®

and DUO-TAPTITE® thread rolling screws are used to create

strong, uniform load carrying internal threads into untapped nut members upon installation. When REMINC

developed the original TAPTITE® TRILOBULAR™ shape thread rolling screw, it revolutionized the use of threaded

fasteners in high production assembly. Assembly efficiency and joint performance along with lower in-place fasten-ing cost, have been the benefits of using TAPTITE® screws. TAPTITE II® and DUO-TAPTITE® screws and bolts

continue these benefits along with meeting the quality and performance needs of the future.

Lower In-Place Fastening Costs

Only 15% of the total in-place cost of a fastening is the cost of the screw or bolt. TAPTITE II® and DUO-TAPTITE®

screws and bolts lower the cost of the remaining 85%.

The following is a list of some of the cost-savings advantages of using TAPTITE II® and DUO-TAPTITE® thread

rolling screws.

-

-

-

-

-

-

-

-

-

Elimination of separate tapping operations and associated costs.

Built-in resistance to vibrational loosening eliminates the need for lock washers, adhesives, or plastic patches

and plugs.

Generates stronger mating threads with uninterrupted grain flow due to work hardening of the nut for higher

stripping resistance.

Accepts larger pilot hole variations than drilled and tapped holes.

Works in punched, drilled, cored and extruded holes in many different metals.

With use of CORFLEX® metallurgy, can be provided in grade strengths of high tensile bolts for use in struc-tural applications in deep thread lengths of engagement.

No assembly line cross threading.

Prevailing torque often equals or exceeds locking screw standards.

Manufactured to REMINC standards all over the world by over 68 of the world’s leading fastener, fastener

processing and tooling companies.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Percent thread chart .......…..

Pilot hole sizes ................…..

Typical torque performance ..

Typical single punch

extruded holes ...........…..

Die cast cored holes ........……

CORFLEX® ...........................

General Information ......…....

Page 8

Page 9

Page 10

Pages 11 & 12

Page 12

Page 21

Page 22

NOMINALSCREW BODY Sizes (mm)M1.6 x 0.351.661.581.591.51M2.0 x 0.402.061.981.981.90M2.5 x 0.452.572.482.482.39Length Tolerance - Metric Per ANSI B18.6.7MM3.0 x 0.503.072.982.972.88Tolerance on LengthM3.5 x 0.603.583.483.463.36Nominal Screw LengthmmM4.0 x 0.704.083.983.943.84to 3mm incl± 0.2M4.5 x 0.754.594.484.444.33over 3 to 10mm± 0.3M5.0 x 0.805.094.984.934.82over 10 to 16mm± 0.4M6.0 x 1.006.105.975.905.77over 16 to 50mm± 0.5M7.0 x 1.007.106.976.906.77over 50mm± 1.0M8.0 x 1.258.137.977.887.72®9.979.859.67TAPTITE II Thread Rolling Screws

M10 x 1.5010.15®12.1811.9711.8311.62TAPTITE II thread rolling screws have the

M12 x 1.7514.2013.9713.8013.57TRILOBULAR™ shape which reduces friction dur-M14 x 2.00ing thread forming, provides prevailing torque

M16 x 2.0016.2015.9715.8015.57which exceeds the level of locking screws, and

Inch Sizes (in)most importantly, inherently provides resistance

00-900.04810.04510.04610.0431to vibrational loosening.

0-800.06130.05830.05880.0558

1-640.07450.07150.07150.0685The TRILOBULAR™ engineering principles used

2-560.08750.08350.08400.0800to create TAPTITE II® screws create an efficient

3-480.10100.09700.09700.0930thread rolling screw in all sizes and pitches allow-4-400.11450.11050.10950.1055ing the manufacture and efficient use of produc-5-400.12750.12350.12250.1185tion screws in Sizes 00/M1 to as large as 1”/M24.

6-320.14100.13500.13500.1290

Only TAPTITE II® screws can make this claim.

8-320.16700.16100.16100.1550Competing designs are not typically manufac-10-240.19400.18800.18600.1800tured above M5 size and certainly not available

10-320.19300.18700.18700.1810up to M24 as are TAPTITE II® screws.

12-240.22000.21400.21200.2060

To utilize the in-place cost savings and perform-1/4-200.25500.24900.24500.2390®ance benefits of TAPTITE II screws in large

5/16-180.31800.31200.30700.3010sizes in structural applications, the combination of

3/8-160.38100.37500.36850.3625®CORFLEX-I selective hardening (See Page 21) is

7/16-140.44450.43850.43050.4245®®highly beneficial. CORFLEX-I TAPTITE II bolts

1/2-130.50750.50150.49200.4860can be used where high-strength grade-strength

9/16-120.57100.56300.55400.5460level bolts are required.

5/8-110.63400.62600.61600.6080COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Length Tolerance - Inch - Per ANSI B18.6.3NominalNominal Screw SizeScrew Length#4 - #121/4" - 1/2"Tolerance On LengthTo 1/2" Inclusive+0, - .020+0, - .030Over 1/2" to+0, - .030+0, - .0301" InclusiveOver 1" to

+0, - .060+0, - .0602" InclusiveOver 2"+0, - .090+0, - .090POINTCpMaximum1.311.672.132.583.003.403.854.315.136.136.918.6910.4712.2514.250.0370.0490.0590.0700.0810.0900.1030.1110.1370.1530.1630.1790.2060.2640.3200.3750.4320.4900.545

“The Controllable Product®”

Why TAPTITE II®

Over TAPTITE®

Screws?

TAPTITE II® screws bring benefits to both fastener Behind the scenes, REMINC has provided its licensed

manufacturer and end user. TAPTITE II® screws

manufacturers with a total quality system for manu-facturing TAPTITE II® fasteners. Included are design

were designed to:

- Provide a more efficient manufacturing

and processing failure mode and effects analysis pro-method and tool design to result in a more

cedures, statistical in process control data collection

system, and improved inspection procedures and cri-consistent product.

teria. Although all REMINC products are designed for

- Be applicable to the quality and SPC

philosophies of today’s market by utilizing the

consistent manufacture and performance,

®capabilities of today’s state of the art tooling

TAPTITE II fasteners were physically re-designed to

and fastener manufacturing equipment.

meet the above quality system, to be the quality flag-- Provide more consistent torque performance,

ship of TRILOBULAR™ products.

lower thread forming torque and lower end

load necessary to initiate thread forming, than

any other thread forming or thread rolling

screw including the original TAPTITE® screw.

Note: TAPTITE II® is often designated TYPE TT AND TT-II

REMINC Statistical Process

Control Electronic Data Collection

System for TRILOBULAR™ Products.

TAPTITE® “CA” screws are for applications

with floating nut members or in situations

where clearance and pilot holes may not line

up initially and where rapid hole finding is

essential. Low initial end load is provided by

the second taper and TAPTITE II® step, a

particularly desirable feature with larger

diameters.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

TAPTITE® “CA” Screws with Step

Taper “CA” Point

Percent thread chart .......…..

Pilot hole sizes ................…..

Typical torque performance ..

Typical single punch

extruded holes ...........…..

Die cast cored holes ........……

CORFLEX® ...........................

General Information ......…....

Page 8

Page 9

Page 10

Pages 11 & 12

Page 12

Page 21

Page 22

Length Tolerance - Inch - Per ANSI B18.6.3Nominal Screw SizeNominalScrew Length#4 - #121/4" - 1/2"Tolerance On LengthTo 1/2" Inclusive+0, - .020+0, - .030Over 1/2" to+0, - .030+0, - .0301" InclusiveOver 1" to

+0, - .060+0, - .0602" InclusiveOver 2"+0, - .090+0, - .090SCREW BODY Sizes (mm)M2.5 x 0.452.572.482.522.44M3.0 x 0.503.072.983.022.93Length Tolerance - Metric Per ANSI B18.6.7MM3.5 x 0.603.583.483.523.42Tolerance on LengthM4.0 x 0.704.083.984.013.91mmNominal Screw LengthM4.5 x 0.754.594.484.514.41± 0.2to 3mm inclM5.0 x 0.805.094.985.014.90± 0.3over 3 to 10mm± 0.4over 10 to 16mmM6.0 x 1.006.105.976.005.87± 0.5over 16 to 50mmM7.0 x 1.007.106.977.006.87± 1.0over 50mmM8.0 x 1.258.137.978.007.85M10 x 1.5010.159.9710.009.82DUO-TAPTITE®

M12 x 1.7512.1811.9712.0011.80Thread Rolling Screws

M14 x 2.0014.2013.9714.0013.77®TAPTITE screws were the leap forward in

M16 x 2.0016.2015.9716.0015.77high production assembly using threaded

Inch Sizes (in)fasteners. DUO-TAPTITE® screws represent

2-560.08750.08350.08550.0815the refinement of the TRILOBULAR™ princi-3-480.10100.09700.09900.0950ple for specific demanding applications.

4-400.11450.11050.11200.1080

5-400.12750.12350.12500.1210 DUO-TAPTITE® screws have generous

6-320.14100.13500.13800.1320lobulation at the screw point for easy entry

8-320.16700.16100.16400.1580and optimum thread forming action plus

10-240.19400.18800.19000.1840reduced lobulation in the screw body holding

10-320.19300.18700.19000.1840area. A stabilizing threaded dog point

12-240.22000.21400.21600.2100insures ready, aligned entry, with easy pick-1/4-200.25500.24900.25000.2440up requiring minimal starting end load.

5/16-180.31800.31200.31250.3065

3/8-160.38100.37500.37450.3685ADVANTAGES

7/16-140.44450.43850.43750.4315- High vibrational resistance

1/2-130.50750.50150.50000.4940- Good axial alignment

9/16-120.57100.56300.56250.5545- Low end load

5/8-110.63400.62600.62500.6170- High strip-to-drive ratio

-

-

High prevailing torque

Good torque tension relationship

POINTCpMaximum2.222.693.133.574.044.515.386.387.239.0710.9212.7714.770.0750.0860.0970.1100.1190.1450.1640.1710.1900.2190.2780.3360.3930.4530.5110.569COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Better starting stability –

Axial Alignment

Superior elastic action of a

®Less misalignment at start of driving

DUO-TAPTITE screw gives it better lock-

operation . . . the self-aligning characteristic

ing characteristics than many

of DUO-TAPTITE® screws reduces operator

fasteners specifically designed as

fatigue; eliminates interruptions in produc-locking screws! Competitive round-

tion; adds speed to every fastening opera-bodied, thread-forming fasteners have no

tion. Suitable for automated and robotic

locking torque. Graph shows comparison

of DUO-TAPTITE® screw with IFI-124

assembly.

minimum requirement for self-locking

screws.

TYPICAL ANGULARITYCOMPETITIVEROUND-BODIEDTHREAD-FORMING SCREW5°3°4°2°B – Higher prevailing torque

DUO-TAPTITE®2°1°2°2°** Starting angle of four specimens of each type

measured at 20x full size on an optical starting end pressure

power costs right down the line.

Torque-tension comparison

Lower starting end pressure combines with

M8 x 1.25 DUO-TAPTITE® vs.

lower driving torque to reduce time and

TAPTITE® Fastener

Superior tension at any given applied

torque (with normal clamping pressure) is

a major factor in the better holding capa-bility of a DUO-TAPTITE® screw.

A – Higher strip-to-drive ratio

The higher, more uniform, strip-to-drive

torque ratio of DUO-TAPTITE® screws pro-vides a built-in safety factor against over-driving. Eliminates broken screws, dam-aged mating threads and inferior

fastenings.

NOTE: All screws were tested in unthreaded weld

nuts of uniform hardness (Rockwell B 82-84) hav-ing 7.1mm hole diameters. End pressure was

manually developed, measured and recorded by an

electronic load cell and recorder. Drive, prevailing

and strip torque values, and torque-tension values

were measured with a GSE torque cell and re-corded on a BLH electronic recorder. All test data

is based on 5/16 - 18 or M8 x 1.25 screws.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Suggested hole sizes for TAPTITE II&DUO-TAPTITEScrews and Bolts at various percentages of thread engagementMetric Sizes (mm)PERCENT THREADNOMINALSCREW SIZEM2.5 x 0.45 M3 x0.5M3.5 x 0.6 M4 x0.7M4.5 x 0.75 M5 x0.8 M6 x1.0M6.3 x 1.0 M7 x1.0M8 x 1.25M10 x1.5M12 x 1.751002.212.673.113.544.014.485.355.656.357.199.0310.8695 90(1) 85(1)2.222.693.133.574.044.515.385.686.387.239.0710.922.242.713.153.594.064.535.425.726.427.279.1210.982.252.723.173.614.094.565.455.756.457.319.1711.03802.272.743.193.644.114.585.485.786.487.359.2211.09706560PILOT HOLE SIZES2.282.292.312.322.762.772.792.803.213.233.253.273.663.683.703.734.134.164.184.214.614.644.664.695.515.545.585.615.815.845.885.916.516.546.586.617.397.437.477.519.279.329.379.4111.1511.2011.2611.3175552.342.823.293.754.234.715.645.946.647.559.4611.37502.352.843.303.774.264.745.675.976.677.599.5111.43452.372.853.323.794.284.775.716.016.717.639.5611.49402.382.873.343.804.304.795.746.046.747.679.6111.55352.402.903.363.844.334.825.776.076.777.729.6611.60® ®Inch Sizes (in)PERCENT THREADNOMINALSCREW SIZE2-563-484-405-406-328-3210-2410-3212-241/4-205/16-183/8-167/16-141/2-131000.07440.08550.09580.10880.11770.14370.16290.16970.18890.21750.27640.33440.39110.450095 90(1) 85(1)0.07500.08610.09660.10960.11870.14470.16430.17070.19030.21910.27820.33640.39340.45250.07560.08680.09740.11040.11970.14570.16560.17170.19160.22080.28000.33840.39570.45500.07610.08750.09820.11120.12070.14670.16700.17270.19300.22240.28180.34050.39800.4575800.07670.08820.09900.11200.12180.14780.16830.17380.19430.22400.28360.34250.40040.4600706560PILOT HOLE SIZES0.07730.07790.07850.07900.08880.08950.09020.09090.09980.10060.10140.10230.11280.11360.11440.11530.12280.12380.12480.12580.14880.14980.15080.15180.16970.17100.17240.17380.17480.17580.17680.17780.19570.19700.19840.19980.22560.22730.22890.23050.28540.28720.28900.29080.34450.34660.34860.35060.40270.40500.40730.40960.46250.46500.46750.470075550.07960.09160.10310.11610.12680.15280.17510.17880.20110.23210.29260.35270.41200.4725500.08020.09220.10390.11690.12780.15380.17650.17980.20250.23380.29440.35470.41430.4750450.08080.09290.10470.11770.12890.15490.17780.18090.20380.23540.29630.35670.41660.4775400.08140.09360.10550.11850.12990.15590.17920.18190.20520.23700.29810.35880.41890.4800350.08190.09430.10630.11930.13090.15690.18050.18290.20650.23860.29990.36080.42130.4825EXAMPLE - The shaded area

engagement.

indicates that an M5 - 0.8 screw size in a 4.58 hole size provides 80% thread

Because the above values are based on a linear relation between hole size and percentage thread engagement, the

hole data becomes less accurate for engagements less than 70%.

Note also, these hole sizes are based on the U.S. basic thread depth of .6495 times the pitch and are calculated using

nominal screw diameters.

Hole = D - (0.6495 x P x %), where D = nominal screw diameter.

(1) Pilot holes listed under 90% & 85% (Thread Percent) also recommended for single punch extruded holes.

See Page 11

For Pilot Hole Tolerance in terms of thread percentage, we suggest +5% to -10% of the nominal value, percent thread

value.

EXAMPLE: If 80% is the percent thread for the nominal hole, the minimum hole would yield 85% thread and the

maximum hole would yield 70% thread.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Recommended pilot hole sizes forTAPTITE II & DUO-TAPTITE Screws and Bolts for steel nut member thicknesses®®(Expressed in terms of screw diameters)Metric Sizes (mm)Application

DutyLightClass0.3 Diameter of MaterialPercentageof90%ThreadNominalMaterialPilotDrillSizeThicknessHoleSizeM2.5 x 0.45M3 x 0.5M3.5 x 0.6M4 x 0.7M4.5 x 0.75M5 x 0.8M6 x 1M6.3 x 1M7 x 1M8 x 1.25M10 x 1.5M12 x 1.750.5-0.90.5-1.10.6-1.40.8-1.40.9-1.71.0-2.11.2-2.41.3-2.41.4-2.41.6-3.11.9-3.92.4-4.92.242.713.153.594.064.535.425.726.427.279.1210.982.25#362.711/8"3.183.60#214.044.50#35.415.706.407.2523/64"9.1011.00Medium-Light0.5 Diameter of Material85%MaterialThickness0.9-1.51.1-1.71.4-2.01.4-2.41.7-2.72.1-2.92.4-3.62.4-3.72.4-4.43.1-4.93.9-5.94.9-7.4PilotHole2.252.723.173.614.094.565.455.756.457.319.1711.03DrillSize2.25#362.711/8"3.183.60#204.09#154.57#35.415.756.407.309.2011.00MaterialThickness1.5-2.11.7-2.72.0-2.92.4-3.32.7-3.92.9-4.43.6-4.93.7-4.94.4-6.54.6-6.95.9-8.37.4-10.5Medium-Heavy0.75 Diameter of Material80%PilotHole2.272.743.193.644.114.585.485.786.487.359.2211.09DrillSize#432.262.753.20#273.664.10#154.575.505.756.50L7.379.207/16"11.11MaterialThickness2.1-2.72.7-3.32.9-3.83.3-4.43.9-4.94.4-5.94.9-6.94.9-7.46.4-7.76.9-8.98.3-10.910.5-14.5Full Strength1.0 Diameter of Material75%PilotHole2.282.763.213.664.134.615.515.816.517.399.2711.15DrillSize#432.262.753.20#273.664.104.605.505.806.50L7.409.257/16"11.11MaterialThickness2.7-3.53.3-4.03.8-4.54.4-5.54.9-6.45.9-7.16.9-8.17.4-8.97.7-9.58.9-10.910.9-12.914.5-17.0Extended1.25 Diameter of Material70%PilotHole2.302.773.233.684.164.645.555.856.557.439.3211.2DrillSize2.307/64"2.783.253.704.20#144.627/32"5.565.80F6.537.409.307/16"11.11Inch sizes (in)Application

DutyMedium-HeavyFull StrengthLightMedium-LightExtendedClass0.75 Diameter of Material0.3 Diameter of Material0.5 Diameter of Material1.0 Diameter of Material1.25 Diameter of MaterialPercentageof90%85%80%75%70%ThreadNominalMaterialPilotDrillMaterialPilotDrillMaterialPilotDrillMaterialPilotDrillMaterialPilotDrillSizeThicknessHoleSizeThicknessHoleSizeThicknessHoleSizeThicknessHoleSizeThicknessHoleSize1.9mm#481.95mm5/645/64.017-.0340.0756.034-.0520.0761.052-.0730.0767.073-.0950.0773.095-.1690.07792-560.07480.0760.07630.07810.07812.2mm2.2mm#43#43#43.020-.0400.8680.040-.0590.0875.059-.0840.0882.084-.1100.0888.110-.1410.08953-480.08660.08660.0890.0890.089#40#40#39#39#39.022-.0450.0974.045-.0670.0982.067-.0950.0990.095-.1260.0998.126-.1570.10064-400.0980.0980.09950.09950.09952.8mm#34#33#33#33.025-.0510.1104.051-.0750.1112.075-.1060.1120.106-.1410.1128.141-.1750.11365-400.11020.1110.1130.1130.113#31#313.1mm3.1mm1/86-32.028-.0660.1197.066-.0830.1207.083-.1170.1218.117-.1520.1288.152-.1930.12380.1200.120.1220.1220.1253.7mm#263.75mm3.8mm3.8mm8-32.033-.0660.1457.066-.0980.1467.098-.1410.1478.141-.1800.1488.180-.2300.14980.14570.1470.14760.14960.1496#194.25mm#18#1811/6410-24.038-.0790.1656.079-.1140.1670.114-.1620.1683.162-.2090.1697.209-.2660.17100.1660.16730.16950.16950.171911/64#17#174.4mm#16.038-.0790.1717.079-.1140.1727.114-.1620.1738.162-.2090.1748.209-.2660.175810-320.17190.1730.1730.17320.177#114.9mm#9#95mm12-24.043-.0860.1916.086-.1300.1930.130-.1840.1943.184-.2380.1957.238-.3020.19700.1910.19290.1960.1960.1969#25.7mm5.7mm5.75mm#11/4-20.050-.1000.2208.100-.1500.2224.150-.2130.2240.213-.2750.2256.275-.3500.22730.2210.22440.22440.22640.2287.1mm9/327.2mm7.25mm7.3mm5/16-18.062-.1260.2800.126-.1880.2818.188-.2660.2836.266-.3450.2854.345-.4380.28720.27950.28120.28350.28540.28748.6mm8.6mm8.7mm8.75mm8.8mm3/8-16.075-.1500.3384.150-.2250.3405.225-.3190.3425.319-.4130.3445.413-.5250.34660.33860.33860.34250.34550.3465XXXYY7/16-14.087-.1740.3957.174-.2620.3980.262-.3710.4004.371-.4810.4027.481-.6120.40500.3970.3970.3970.4040.40429/6429/6429/6415/3215/321/2-13.100-.2000.4550.200-.3000.4575.300-.4250.4600.425-.5500.4625.550-.7000.46500.45310.45310.45310.46880.4688Notes: This chart pertains to steel nut membersAPPLICATION DUTY CLASS - A general term used here to group material thickness in terms of screw diameters. For example, the average material thicknesslisted under "medium-heavy" equals 75% of the screw GHT 2001, Research Engineering & Manufacturing Inc.

MetricScrew PlateSizeThickness1.02.0M3 x 0.53.02.03.0M4 x 0.74.02.53.5M5 x 0.85.03.04.5M6 x 1.06.04.06.0M8 x 1.258.05.08.0M10 x 1.510.06.09.0M12 x 1.7512.0HoleSize2.712.752.753.603.663.664.574.574.605.415.505.507.307.377.379.209.209.2511.0011.1111.11Typical Torque Performance of TAPTITE IIScrews in Cold Rolled SteelNearestDrillSize#362.75mm2.75mm3.6"#27#27#15#154.6mm#35.5mm5.5mm7.3mmLL9.2mm9.2mm9.25mm11.0mm7/167/16NearestDrillSize1.9mm#48#472.2mm#43#43#402.6mm2.6mm#34#33#32#31#311/8#263.8mm3.8mm11/6411/6411/64#17#16#16#9#813/645.7mm5.7mm#1K7.25mm7.25mmSS9mmY13/3213/3229/6415/3215/32ThreadFormingTorque.30-.45.35-.55.50-.80.60-.85.90-1.31.2-1.61.3-2.01.5-2.72.0-3.02.0-2.83.2-4.53.5-4.84.8-7.05.5-9.57-1211-1514-1915-2223-2925-3130-38ThreadFormingTorque1-21-21-23-43-54-62-33-43-44-54-76-84-76-96-910-1311-1416-2014-1814-1817-2211-1412-1619-2519-2421-2621-2630-3645-5555-6575-8575-8580-9090-100110-12595-110145-165145-170195-220150-180185-215235-275PrevailingFirstRemovalTorque.15-.30.15-.30.25-.40.30-.40.50-.70.60-.85.60-.80.90-1.5.9-1.5.60-1.2.90-1.51.0-1.71.5-2.82.2-3.64-65-76-97-127-139-1513-20PrevailingFirstRemovalTorque.5-1.5-1.5-11-21-21-21-21-21-22-33-44-53-43-54-65-74-78-115-85-89-139-139-1312-169-129-1310-1418-2525-3525-3540-5040-5055-6545-5550-6030-4575-9560-9075-10560-8060-9075-105Recom-mendedAssemblyTorque1.01.01.61.83.34.32.86.07.05.010.010.020.028.030.030.045.055.060.065.0100.0®InchFailureTorque1.5-2.0*1.6-2.5*2.5-3.5*†2.8-3.8*5.5-7.57.0-10.05.3-8.0*10-12*11-14*†9-13*16-21*18-25*†33-42*43-53*55-65†53-63*80-92*92-102*†108-130*115-135*175-200*†Screw PlateSizeThickness0.04690.06252-560.09380.06250.09383-480.12500.03120.06254-400.09380.06250.09385-400.12500.06250.09386-320.12500.09380.12508-320.18750.09380.125010-240.18750.09380.125010-320.18750.12500.187512-240.25000.12500.18751/4-200.25000.18750.25005/16-180.31250.25000.31253/8-160.37500.31250.37507/16-140.50000.25000.37501/2-130.5000HoleSize0.0750.0760.0790.0870.0890.0900.0980.1020.1020.1110.1130.1160.1200.1200.1250.1470.1500.1500.1720.1720.1720.1730.1770.1770.1960.1990.2030.2240.2240.2280.2810.2850.2850.3480.3480.3540.4040.4060.4060.4650.4690.469Recom-mendedAssemblyFailureTorqueTorque46-7*48-10*511-14†614-15*715-16*715-18†68-11*915-18*1122-27†1222-29*1834-41*2038-46†1425-30*2035-45*†2239-45†3065-75*4575-85*†4575-95†3565-80*4580-90*55110-115†3580-95*50110-120*70115-140*6595-115*75135-155*85150-170†85170-195*125205-235†125205-235†160380-410*225425-465*†250450-500†350825-875*400950-1000*450950-1000*5001000-1150*6001200-1350*7001400-1600†500975-1075*8501600-1800*1001900-2200† NOTES:

- Torque values for metric sizes in New-ton-meters

- Torque values for inch sizes in pound-inches

- Plate dimensions for metric sizes in mil-limeters and for inch sizes in inches

- Torque values were developed using

hex washer head screws, zinc plated

plus lubricity wax, driven at low speed

under laboratory-controlled conditions.

- Values shown represent the above con-ditions only and should not be used in

lieu of proper application testing. The

data is presented to provide the user

with an estimate of what could be

achieved in an actual application having

a thicker or thinner nut member harder

or softer material, different hole or fas-tener all contribute to variations in

torque performance.

- Recommended tightening torque is in-tended to induce approximately 30,000

to 50,000 psi clamping force.

- Prevailing first removal torque, the

torque necessary to remove the screw

after the head has been un-seated, is

an indication of TAPTITE II® screws

inherent resistance of free turning which

is an indication of resistance to loosen-ing under vibration, even without screw

head being seated.

* Indicates probability that nut

threads will strip.

† Indicates probability that screw

will break.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Suggested extruded holes in light-gauge

steel for TAPTITE II® and DUO-TAPTITE®

Screws and Bolts

Extruding holes for fasteners in light-gauge steel

The areas of the upper chart indicate that an

nearly doubles the length of thread engagement over

extruded hole diameter of .146” to .149” is suggested

original material thickness.

in .060” thick material when using a number 8-32

TAPTITE II® or DUO-TAPTITE® screw. The

®®TAPTITE II and DUO-TAPTITE screws and bolts

corresponding H dimension, shown on Page 12 for

will develop almost twice the failure torque in ex-this hole will be .053” minimum, making the total

length of engagement .113” minimum.

truded holes, providing maximum joint integrity.

mm Thickness0.5Inch Thickness0.020.03Screw SizeM2.5 x 0.452.212.24M3 x 0.502.682.71M3.5 x 0.63.113.156-320.1180.1180.1200.121M4 x 0.708-32M4.5 x 0.7510-2410-32M5 x 0.8012-24M6 x 1.00M6.3 x 1.001/4-20M7 x 1.005/16-18M8 x 1.253/8-16M10 x 1.507/16-14M12 x 1.751/2-1310.8610.9810.9111.039.039.129.089.170.2180.2206.356.420.2770.2797.197.270.1890.1890.1910.1920.1900.1935.355.425.655.720.2180.2216.406.470.2780.2807.227.300.3350.3379.139.220.3920.39510.9611.0111.0811.130.1630.1650.1700.1720.1630.1660.1700.1730.1440.1440.1460.1474.014.600.1640.1670.1710.1744.484.530.1910.1945.385.455.685.750.2190.2236.456.520.2790.2817.257.330.3360.3389.189.279.269.350.80.042.222.262.712.743.133.180.1190.1223.553.590.1450.1484.044.090.1650.1680.1720.1754.514.560.1920.1965.415.485.715.780.2210.2256.506.570.2800.2837.307.387.357.433.583.620.1460.1494.074.120.1660.1700.1730.1764.544.590.1930.1975.445.515.745.810.2240.2286.556.626.636.700.2810.2852.252.282.742.773.163.210.1200.1233.603.650.1470.1504.104.150.1680.1730.1740.1774.574.620.1950.2005.495.565.795.860.1980.2031.10.062.272.302.772.803.193.240.1220.1253.643.680.1480.1524.154.20D

HOLE

DIAMETER3.693.731.60.092.43.64.44.750.195.50.220.250.310.380.130.16HOLE SIZES - D2.802.833.243.293.273.325.855.910.2270.2316.716.780.2830.2850.2880.2907.437.517.517.590.3370.3370.3420.3400.3400.3469.349.429.439.510.3940.3960.3980.3970.4000.40211.0911.1711.2111.290.4500.4520.4540.4530.4550.4570.2280.2300.2330.2350.3440.3499.509.590.4010.40511.2511.370.4550.4600.4040.40911.3311.450.4590.464(Continued on next page)

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Suggested extruded holes in light-gauge steel for TAPTITE II® and DUO-TAPTITE®

Screws & Bolts

(Continued from page 11)

INMM HOLE . 0.081 - .100MM 2.06 - 2.54IN. .101 - .130MM 2.57 - 3.30IN. .131 - .150MM 3.33 - 3.81IN. .151 - .180MM 3.84 - 4.57IN. .181 - .220MM 4.60 - 5.59IN. .221 - .260MM 5.61 - 6.60IN. .261 - .300MM 6.63 - 7.62IN. .301 - .340MM 7.65 - 8.64IN. .341 - .380MM 8.66 - 9.65IN. .381 - .430MM 9.68 - 10.92.024 - .0350.61 - 0.89HR0.0400.0051.020.130.0470.0051.190.130.0530.0051.350.13Approximate Material Thickness "T".042 - .0480.0600.091.07 - 1.221.522.29HRHRHR0.0400.0050.0400.0060.0430.0101.020.131.020.151.090.250.0470.0050.0470.0060.0520.0101.190.131.190.151.320.250.0530.0050.0530.0060.0600.0101.350.131.350.151.520.250.0600.0050.0810.0060.0700.0101.520.131.550.151.780.250.0700.0050.0700.0060.0900.0101.780.131.780.152.290.250.0750.0060.1000.0101.910.152.540.250.0830.0060.1160.0102.110.152.950.250.1300.0103.300.250.1400.0103.560.250.1500.0103.810.250.1062.69HRH0.1223.10R0.0541.370.0631.600.0751.910.0952.410.1052.670.1253.180.1403.560.1553.940.1704.320.0100.250.0100.250.0100.250.0100.250.0100.250.0100.250.0100.250.0100.250.0100.250.0721.830.0872.210.1042.640.1203.050.1403.580.1643.910.1704.320.1844.670.0130.330.0130.330.0130.330.0130.330.0130.330.0130.330.0130.330.0130.33The above hole sizes are suggested starting points to be confirmed by actual testing. Extrusion Dimensions can vary due to tooling design and material being ted hole sizes for Aluminum or Zinc die casting for TAPTITE II® and DUO-TAPTITE®

Screws & Bolts

ScrewSizeHole Diameter as Cast

Std. TaperTop ABottom BMax.M2 x 0.40M2.5 x 0.45M3 x 0.5M3.5 x 0.6M4 x 0.7M4.5 x 0.75M5 x 0.8M6 x 1.0M6.3 x 1.0M7 x 1.0M8 x 1.25M10 x 1.5M12 x 1.752-563-484-405-406-328-3210-2410-3212-241/4-205/16-183/8-167/16-141/2-131.912.392.903.313.824.314.805.746.056.787.699.6411.590.0810.0930.1050.1180.1280.1550.1770.1820.2030.2350.2970.3590.4190.481Min.1.832.312.823.233.744.234.725.665.976.707.619.5611.510.0780.0900.1020.1150.1250.1520.1740.1790.2000.2320.2940.3560.4160.478Max. Min.1.812.282.763.213.644.114.585.485.786.487.359.2211.090.0770.0880.0990.1120.1220.1480.1680.1740.1940.2240.2840.3430.4000.4601.732.202.683.133.564.034.505.405.706.407.279.1411.010.0740.0850.0960.1090.1190.1450.1650.1710.1910.2210.2810.3400.3970.4571.812.282.763.213.644.114.585.485.786.487.359.2211.090.0770.0880.0990.1120.1220.1480.1680.1740.1940.2240.2840.3430.4000.4604.005.006.007.008.009.0010.0012.0013.0014.0016.0020.0024.000.1720.1980.2240.2500.2760.3280.3800.3800.4320.5000.6250.7500.8751.000FLHole asof .3.324.154.985.816.647.478.309.9610.4611.6213.2816.6019.920.1970.2080.2200.2320.2420.2720.3150.3150.3590.4150.5190.6230.7260.830JDistance toEdge for NoMeasurableDistortion - Min.1.01.21.31.61.82.02.12.62.62.63.33.94.60.0460.0540.0650.0650.0810.0810.1080.0810.1080.1300.1440.1620.1860.200Metric Sizes (mm)The minimum length of thread

engagement should be equal to

twice the diameter of the screw (to

approach utilizing available screw

strength). The hole diameter to

ensure optimum performance,

should provide for 65% to 75%

thread engagement.

Inch Sizes (in)COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

- Designed to resolve the

fastening problems of ‘stripping’

and ‘spin-out’ in THIN SHEET

METAL as is often found when

using standard round-bodied

sheet metal screws

- Increased torque performance

in thin sheet metal applications

- Low end loads

- EXTRUDE-TITE® screws tend to

drive straight

- Employs TRILOBULAR™ tech-nology in the joint

- Electrical grounding assured by

the intimate contact of the roll-formed threads

- Reduces costs by allowing thin-ner, lighter materials in the as-sembly

- Reduces costs by reducing or

eliminating repairs due to

‘stripping’, ‘spin-outs’, and off-angled entry of fastener on the

assembly line

- Reduces costs by eliminating

cleanup of chips, oil and debris

caused by tapping operations

- Reduces costs by simplifying

assembly – fewer components

- Reduces costs by simplifying

assembly equipment

SCREW BODY mMaximumMetric Sizes (mm)M2.5 x 0.452.572.482.522.440.942.48M3.0 x 0.503.072.983.022.931.262.75M3.5 x 0.603.583.483.523.421.413.30M4.0 x 0.704.083.984.013.911.563.85M4.5 x 0.754.594.484.514.411.894.13M5.0 x 0.805.094.985.014.902.214.40M6.0 x 1.006.105.976.005.872.515.50M7.0 x 1.007.106.977.006.873.515.50M8.0 x 1.258.137.978.017.853.646.88M10 x 1.5010.159.9710.009.824.768.25M12 x 1.7512.1811.9712.0011.805.899.63Inch Sizes (in)3-480.10100.09700.09900.09500.0260.1154-400.11450.11050.11200.10800.0240.1385-400.12750.12350.12500.12100.0370.1386-320.14100.13500.13800.13200.0280.1728-320.16700.16100.16400.15800.0540.17210-240.19400.18800.19000.18400.0440.22910-320.19300.18700.19000.18400.0800.17212-240.22000.21400.21600.21000.0700.2291/4-200.25500.24900.25000.24400.0760.2755/16-180.31800.31200.31250.30650.1190.3063/8-160.38100.37500.37450.36850.1580.3447/16-140.44450.43850.43750.43150.1900.3931/2-130.50750.50150.50000.49400.2330.423Length Tolerances

Inch

Lengths up to and including 1” ± .030”

Lengths greater than 1” ± 0.050”

Metric

Lengths up to & including 25mm ± .8mm

Lengths greater than 25mm ± 1.3mm

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

- First prevailing-off torque is an indication of

- May be used in thicker materials as a

locking torque and resistance to vibrational

thread-forming, locating point fastener.

loosening and was judged favorably high

- Couple EXTRUDE-TITE® fasteners with an

for EXTRUDE-TITE® screws in thin sheet underhead locking feature for ultimate vi-metal. brational and ‘spin-out’ resistance or with a

- Performance in extruded holes is slightly

sharp point to pierce cloth, vinyl or other

higher than in drilled holes. Therefore, such similar materials.

either hole design is favorable.

- EXTRUDE-TITE® screws typically forward

and backward extrude material beyond its

original thickness, providing the fastener

with over twice the engagement than that

of non-extruded materials.

- An important consideration is the signifi-cantly superior and consistent strip-to-drive

ratio of EXTRUDE-TITE® screws over other

sheet metal screws which allows for more

liberal driver clutch settings at the fastening

site.

- Tests have shown that EXTRUDE-TITE®

fasteners may be used in a wide range of

pilot hole sizes with satisfactory results

depending upon application requirements.

FirstDrivePrevailingTorqueOff Torque4253735263.900.321.130.391.320.520.930.351.110.731.661.401.090.481.320.522.120.92StriptoDriveRatio3:13:13:13:13:12.6:13:13:13:13:12.6:12.7:12.4:12:12:12.8:13:13:13.4:13:13:1RecommendedTighteningTorque81.541.742.021.762.333.242.42.564.15Description#6 - 32 x 3/8Hex Washer HeadZinc & Wax#8 - 32 x 3/8Hex Washer HeadZinc & Wax#10 - 32 x 9/16Hex Washer HeadZinc & Wax1/4 - 20 x 5/8Hex Washer HeadZinc & WaxM4 x 0.7 x 13Hex Washer HeadZinc & WaxM5 x 0.8 x 16Hex Washer HeadZinc & WaxM6 x 1.0 x 16Hex Washer HeadZinc & WaxMaterialThickness0.0280.0320.0400.0280.0320.0400.0280.0320.0400.0280.0320.0400.700.801.000.700.801.000.700.801.00HoleSize0.0800.0800.0800.1100.1100.1100.1380.1380.1380.1810.1810.1812.642.642.643.453.453.454.604.604.60StripTorque62529453536572.182.352.712.593.554.823.713.796.17Self-aligning point feature

‘finds’ the holes, lines them up

and fastens them in one

operation.

TEST PARAMETERS -

Test material: cold-rolled draw quality

aluminum killed steel plate

hardened to Rb 50-55

Test washer: .063 thick steel

Clearance hole: .180(#6), .200(#8), .220(#10),

.280(1/4”)

Drive speed: 250 RPM under load

Driver end load: 8lbs.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

- These values may vary proportionately to application.

Smaller hole sizes for example, will increase drive, first off,

strip torques, etc. Material thickness will also effect torque/tension values as indicated in the table. These values were

derived from averages of over 1800 laboratory tests under

specific conditions. These values are to be used only as a

guide since actual application performance results may vary.

FOR BETTER FASTENING AT

LOWEST IN PLACE COST

- Enhanced locking ability

- Continuous locking action

- Resistant to high temperatures

- Reusable

- No special taps

Enhanced locking ability

“POWERLOK®, TRILOBULAR™ self locking

screws are a unique concept in locking

screws.” Made from high strength steel, hard-ened and tempered to an optimum strength-toughness serviceability, the POWERLOK®

®screw achieves enhanced locking ability

POWERLOK - Metric Standardsthrough the combination of a novel 60º-30º

DIMENSIONS THREAD BODY (millimeters)POINTthread form and a TRILOBULAR™ thread

DIAMETER OFMEASUREMENTNOMINALDIAMETER OFbody section. A significant mechanical advan-CIRCUMSCRIBINGACROSSSIZECIRCUMSCRIBINGCIRCLECENTEROF SCREWCIRCLEtage of this design is that the locking action is

CDCPdeveloped at the outermost radius of the

arm of the screw body whereas other

M3.5 x .63.693.593.573.473.50locking screws develop their effective resis-M4 x .74.224.104.083.964.00M5 x .85.265.135.104.975.00tance at lesser radius points on thread flanks,

6.306.156.105.956.00down even to the thread root surface. The

M6 x 1M8 x 1.258.358.208.107.958.00deeper geometry of the POWERLOK® thread,

M10 x 1.510.4010.2510.109.9510.0012.4512.3012.1011.9512.00along with a slight increase in the thread ma-M12 x 1.75jor diameter over equivalent size machine

®screw, adds to the effective stripping resis-POWERLOK - Inch Standardstance of the fastener. In addition, the cen-DIMENSIONS THREAD BODY (inches)POINTtralization of the POWERLOK® lobes in the nut

DIAMETER OFMEASUREMENTNOMINALDIAMETER OFmember thread allows the 30º thread crest on

CIRCUMSCRIBINGACROSSSIZECIRCUMSCRIBINGCIRCLECENTEROF SCREWCIRCLEthe fastener to flex elastically under clamp

CDCPload, simulating the live action of spring

s.

4-400.11700.11200.11200.10700.112

5-400.13100.12500.12600.12000.1256-320.14700.14100.14100.13500.138Continuous locking action

8-320.17250.16650.16650.16050.164POWERLOK® screws do not have to be seated

10-240.20500.19800.19700.19000.190to lock, as the locking thread feature extends

10-320.19950.19250.19350.18650.19012-240.23100.22400.22300.21600.216the entire length of the fastener. They resist

1/4-200.26950.26150.25950.25150.250vibration at any point along their body length.

5/16-180.33150.32350.32050.31250.312POWERLOK® fasteners are excellent adjusting

3/8-160.39450.38650.38200.37400.375screws. The locking action is instantaneous

7/16-140.45950.45150.44550.43750.4371/2-130.52350.51550.50800.50000.500and, unlike chemical locking agents, no reac-tion or curring time is required.

Length Tolerance - Inch - Per ANSI B18.6.3Length Tolerance - Metric per ANSI B18.6.7MResistant to high temperatures

Nominal Screw SizeNominalTolerance on Length®Nominal Screw Length#4-#121/4"-1/2"mmPOWERLOK screws do not lose their action

Screw LengthTolerance on Lengthto 3mm incl.± 0.2or efficiency in high temperature environ-over 3 to 10mmTo 1/2" Inclusive+0, -.020+0, -.030± 0.3ments. Non-metallic additives featured with

Over 1/2" to

over 10 to 16mm± 0.4+0, -.030+0, -.030many lock screws lose much or all of their

1" Inclusiveover 16 to 50mm± 0.5over 50mmOver 1" to± 1.0developed force or deteriorate with time un-+0, -.060+0, -.060der the influence of temperatures of 200ºF or

2" InclusiveOver 2"+0, -.090+0, -.090higher. POWERLOK®, being an all-metal lock-ing fastener, is unaffected by these or higher

operating temperatures.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Exceed IFI locking screw standards

Have locking action you can’t wear out!

Reusable - Subjecting the POWERLOK® screw to

Applications - Widely used in automotive and other

increasing clamp load results in continuously in-mass-assembly operations. You can use POWERLOK®

creasing thread flank contact so that unit pressure

screws wherever you need reliable vibration resistance,

between mating surfaces tends to remain constant,

continued high performance, despite repeated assem-an important factor in diminishing galling and abra-bly/disassembly using normal tapped holes. They can

sion. Together with the burnishing action of the

be used in pre-tapped holes in ductile metals.

TRILOBULAR™ crests means continued locking ef-

fectiveness, after repeated insertions and removals.

STANDARD MATERIAL - Depending on part size, low

carbon, medium carbon or alloy steel is selected. Then

Locking performance - Will meet or exceed IFI

the steel is hardened and tempered to the optimum

124 (inch) or IFI 524 (metric) Specifications for Pre-combination of tensile strength and toughness. Ten-vailing Torque Locking Screws. Transverse vibration

sile or torsional strength can be more than twice that

test data available upon request. Actual perform-of machine screws. Screws can be made in strength

ance will vary depending on effective finish lubricity

levels to suit a wide range of application requirements.

and nut condition.

Property Class 10.9 is often preferred. Finishes can be

supplied as required.

No special taps - You save time and money by

using a regular nut or Class 2B (6G) tapped hole.

POWERLOK® is precision made - so the hole thread

doesn’t have to be.

The KLEERLOK® feature is designed to be used in

conjunction with TRILOBULAR™ fasteners in pre-tapped holes which may be contaminated with weld

splatter, paint, primer or other foreign matter.

The KLEERLOK® feature can be combined on a

POWERLOK® screw for paint clearing and locking

torque or on a reduced diameter TAPTITE® screw as

a version for joints where classical torque-tension

fastening rather than a locking screw is desired.

KLEERLOK® Thread

Clearing Lock Screw

KLEERLOK® Point Form

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

The PLASTITE® family of

TRILOBULAR™ screws for

fastening in plastic

The following is intended as a guide to

choosing threaded fasteners which will

provide optimum application and per-formance characteristics in a wide

range of plastics. It contains detailed

information on PLASTITE® thread-rolling screws.

Because of the variations in the manu-facture of individual grades of plastics,

particularly in the quantity of filler used,

it is imperative that tests be conducted

on each proposed application by a com-petent engineering laboratory.

REMINC/CONTI’s network of licensees

provide this testing service usually wit

out obligation. This provides the design

engineer with recommendations in the

following areas: type of fasteners,

quantity and sizes, design of the fasten-ing site or boss, hole sizes. Torque val-ues needed for power tool settings dur-ing assembly, including: drive, strip,

seating, breakaway and prevailing off

torque. A written report on the test re-sults is usually provided.

How the TRILOBULAR™ family

optimizes fastener performance

and lowers in-place costs.

PLASTITE® TRILOBULAR™ thread-rolling screws were developed specifi-cally for use in plastics. They combine

a unique TRILOBULAR™ cross-sectional

form with deep, wide, spaced threads.

Easier to drive. Three swaging lobes

with full relief of the thread form reduce

driving effort and operator fatigue.

More holding power. The three-lobed

design of PLASTITE® screws takes full

advantage of the cold flow characteris-tics of many plastics by allowing plastic

material to recover and fill in between

the lobes. This establishes maximum

resistance to vibrational loosening. In

addition, the screws’ deep, coarsely

spaced threads provide a heavier shear

area and deeper thread engagement in

the plastic,

further enhancing holding

capabilities.

Reduced hoop stress. The

Fast, cost-effective application.

PLASTITE® screw’s TRILOBULAR™

The easy starting, easy driving capa-design reduces dangerous hoop

bilities of PLASTITE® screws cut as-stress and the friction of root inter-sembly time and costs. Exceptional

ference, which can frequently cause holding power eliminates the need

the bursting of thin-walled bosses. for costly inserts and lockwashers.

Better quality threads. The

Fewer torque problems. The

smooth burnishing action of unusually high drive-to-strip ratio of

PLASTITE® thread-rolling screws

PLASTITE® screws permits a wider

eliminates the dangers inherent in span of torque settings to be safely

the use of thread-cutting screws. used with automatic drivers. Strip

PLASTITE® screws roll form high out is virtually eliminated.

quality internal threads with no dam-age to the molecular structure of

the plastic, significantly reducing the

danger of material failure.

60°45°FRad 1FRad 2R 122 1/2°R 230°FAxi 1FAxi 2Resolution of Resultant Forces comparing PLASTITE® 45 thread

form with standard 60° thread TE® 45 Screws

also reduces stress by displacing less material

PLASTITE® 45 screws represent the latest

and creating less bursting pressure (See

refinement of the cost savings and perform-above illustration).

ance capabilities of TRILOBULAR™ technology

for assembling plastic components. The

Hardened and tempered screws are

TRILOBULAR™ shape makes use of the plas-significantly stronger than plastic so if the

tic’s natural resiliency and creep characteris-assembly becomes over-torqued, usually the

tics, allowing the plastic to fill in the depres-plastic will give way and strip out. Strip out in

sions between the lobes. This helps lock the

the plastic will occur cylindrically so the more

fastener in place providing prevailing torque if

nut member material that remains within the

fastener removal is attempted. Years of re-cylinder the more resistant to strip out will be

search revealed that exceptional performance

the plastic. It is for this reason the wide

could be achieved by combining the

thread spacing of a PLASTITE® 45 screw in-TRILOBULAR™ shape with the following at-creases the assembly strength at the same

tributes:

time that it reduces stress.

- Wide thread spacing

- Narrow thread angle

PLASTITE® 45 screws are the perfect balance

between application needs and efficient manu-The extra wide thread spacing and more acute

®facturing for consistent performance.

thread angle of PLASTITE 45 screws keep

induced stress to a minimum during the

PLASTITE® 48-2 Screws

thread forming operation. These attributes PLASTITE® 48-2 scews have a TRILOBULAR™

also permit a deeper thread without increased

body like PLASTITE® 45 screws, but incorpo-drive torque. Also, the extra wide thread

rate a double lead, two- start thread. The

spacing allows stress to be dispersed over a

steeper helix angle from the double lead per-greater area in the plastic boss or nut mem-mits higher fail torque to be obtained, usually

ber, and the plastic material remaining be-resulting in a higher differential between fail

tween the threads is left strong and intact,

torque and thread forming torque, which al-thus providing for high assembly loads and lows for easier power tool adjustment when

stripping resistance. The narrow thread angle

assembly stripping is the problem.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

Recommended pilot hole sizes are subject to

variation dependent on depth of engagement,

ease of driving required and material being

tapped. Users of PLASTITE® 45 screws should

perform their own test to determine the most

efficient pilot hole size for their own particular

use, or contact the application engineering de-partment of a licensed supplier or REMINC.

MATERIAL:LENGTH TOLERANCES:SAE Low CarbonInchMetricSteel, Suitably HardenedSize #2-#12Sizes M2-M5and Temperedthru 3/4"± .030"Up to 20mm± 0.8"Size #2-#12Sizes M2-M5FINISH:Over 3/4"± .050"Over 20mm± 1.3As RequestedOver 1/4" Dia.M6-M8All Lengths± .050"All Lengths± 1.3PLASTITE® 45 Standards - METRICScrewMinimumRecommendedSize"C""D"Out-of-Pilot .M2 x 1.352.04 - 1.921.99 - 1.870.051.401.60M2.5 x 1.42.53 - 2.412.49 - 2.370.051.852.05M3 x 1.53.04 - 2.922.99 - 2.870.052.302.50M3.5 x 1.653.54 - 3.423.46 - 3.340.082.753.00M4 x 1.754.04 - 3.893.94 - 3.791.003.203.45M4.5 x 24.54 - 4.394.43 - 4.280.113.603.90M5 x 2.25.04 - 4.894.94 - 4.790.103.704.10M5 x 2.35.04 - 4.894.94 - 4.790.103.704.10M6 x 2.56.04 - 5.895.93 - 5.780.114.705.10M8 x 38.04 - 7.867.89 - 7.710.156.507.10PLASTITE® 45 Standards - INCHScrewMinimumRecommendedSize"C""D"Out-of-Pilot .#2-19.0875-.0835".0845-.0805".002".065".073"#3-18.101-.097".098-.094".002".076".084"#4-17.1145.1095".111-.106".0025".087".096"#5-15.1275-.1225".1235-.1185".003".099".108"#6-13.141-.136".137-.132".003".102".114"#7-12.153-.148".1485-.1435".0035".114".127"#8-11.167-.161".162-.156".004".126".139"#9-10.179-.173".174-.168".004".135".149"#10-9.194-.188".189-.183".004".150".165"#12-9.220-.214".2145-.2085".0045".170".186"1/4-8.253-.247".247-.241".005".198".216"9/32-8.284-.278".278-.272".005".227".246"5/16-8.316-.308".309-.301".006".255".275"21/64-8.332-.324".325-.317".006".270".290"11/32-8.349-.341".342-.334".006".285".306"3/8-7.379-.371".371-.363".007".309".332"COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

PLASTITE® 48-2 TRILOBULAR™ thread-rolling

screws have twin lead threads to provide faster,

more efficient insertion. The sharp 48° thread pro-file increases holding strength and reduces material

displacement and boss bursting tendencies. Drive

and strip torques are higher, making drive tool ad-justments simple. NOTE: Component and boss de-sign should allow for much faster engagement than

with single lead screws.

"C"Screw SizeT.P.I. (1). 2 (.089) - 28.092.086FINISH:* 3 (.106) - 24.110.104As Requested 4 (.123) - 20.127.121 6 (.143) - 19.147.141LENGTH TOLERANCES* 7 ( .160) - 18.166.160 8 (.179) - 16.185.179Nom.* 9 (.193) - 15.199.193LengthTol. 10 (.208) - 14.212.206Thru 3/4"± .030" 12 (.230) - 11.235.229Over 3/4"± .050"* 12 (.226) - 14.232.226Over 1/4" Dia. 1/4 (.268) - 10.276.270All Lengths± .050"5/16 (.335) - 9.345.335* These sizes can be made to orderMATERIAL:Low Carbon Steel,Suitably Hardenedand Tempered"D"Max..089.106.123.143.160.179.193.208.230.226.268.335Min..083.100.117.137.154.173.187.202.224.220.262.325RecommendedPilot Hole SizesMinimumOut-of-Soft DuctileBrittleRoundMaterialsMaterials.002.076.080.002.088.094.002.100.106.003.122.128.004.134.142.004.149.158.004.162.172.004.175.185.005.195.206.005.195.205.006.224.240.006.286.3031. Size/TPI – The PLASTITE® 48-2

2.

screw size designation combines

the commonly used numerical

screw size with the major diameter

(Max. “D”) as measured with ordi-nary micrometers, followed by the

number of threads per inch.

Recommended pilot hole sizes are

subject to variation dependent on

depth of engagement, ease of

driving required and material being

tapped. Users of PLASTITE® 48-2

screws should perform their own

test to determine the most efficient

pilot hole size for their own

particular use, or contact the appli-cation engineering department of a

qualified supplier or REMINC.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

PUSHTITE® II TRILOBULAR™

fasteners are designed to be

pressed into recommended hole

sizes with a single, straight-line

stroke. They can be used in a

broad range of thermoplastics of

widely varying densities.

PUSHTITE® II fasteners combine

a 3 lobe thread form with a 70º-10º semi-buttress thread shape

to permit easy entry and provide

exceptional pullout resistance.

Threads are helical, not annular,

permitting displaced air to escape

during insertion.

The helical thread form also al-lows the fasteners to be removed

and reinserted if necessary.

Screw SizeT.P.I.2-223-204-186-167-158-149-1310-1212-111/4-9"C"Max..0885.102.1155.141.152.168.181.194.220.255Min..0835.097.1105.135.146.162.175.188.214.249Max..085.098.1105.136.1465.162.174.185.210.244"D"Min..080.093.1055.130.1405.156.168.179.204.239"P"MinimumPoint 0.063.00350.073.0040.083.00450.104.0050.112.00550.124.0060.134.0070.143.0090.164.0100.182.011PilotHoleDiameter.079-.073.092-.085.105-.097.128-.120.139-.131.152-.144.165-.156.175-.165.201-.191.229-.217MATERIAL:Low Carbon Steel,Suitably Hardenedand TemperedFINISH:As RequestedLENGTH Thru 3/4"Over 3/4"Over 1/4" LengthsRecommended length of thread engage-Tamper Resistant yet Removable

ment is two screw diameters minimum.

for Service.

® II fasteners are normally avail-PUSHTITEThe range of suggested hole sizes is large

because of the range of densities in ther-able with a drive system in the head for

moplastic compounds and length of thread

removal, adjustment or final tightening.

engagements. Generally low density plas-Where adjustment or removal is not re-tic can use smaller hole diameters. Long

quired they are available without slot, re-length of engagement (2 to 3 diameters)

cess or socket in the head.

require larger holes.

Tol.± .030"± .050"± .050"Performance in graphs is based

on the average of several tests

in different materials.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

THE TOUGHER THREAD ROLLING SCREWS

CORFLEX® - EXPANDS THE COST

CORFLEX®-I, TAPTITE II®, TAPTITE®

SAVINGS HORIZON CA and DUO-TAPTITE® and screws

and bolts are unique: They are manu-

factured from 4037 alloy steel and

TAPTITE II®, TAPTITE® CA and

DUO-TAPTITE® screws are capable of

custom heat treated throughout to

performing in large diameter sizes in

whatever strength is required! This

deep thread engagements. The past

could be Grade 8.8, 9.8, 10.9, 12.9 or

anything in between!

limitation in exploiting the in-place

cost savings of large size

CORFLEX®-I screws are neutral hard-TRILOBULAR™ products was that the

ened so the bolt or screw has uniform

required screw hardness was achieved

structure similar to grade strength

through case hardening. Case harden-machine screws. Then, after bolt

ing is detrimental to structural appli-strength is heat treated to the re-cations as the fastener would be sus-quired properties of applications, the

ceptible to differing modes of “brittle”

thread rolling zone is induction hard-failure.

ened for thread forming capability.

Tougher! That’s the whole reason why

This selective zone heat treating is

CORFLEX® fasteners were invented!

done on customized automatic feed

induction hardening machines.

Screws come in many different

It is this two stage heat treatment

strengths; ordinary machine screws

®-I version

“Punishment Proved” Performance: The

are manufactured from non-hardened,

that makes the CORFLEX®®TAPTITE II, TAPTITE CA and DUO-unusual tapping and fastening capabilities

low-carbon steel.

of the CORFLEX®-I screw are illustrated by

®TAPTITE screws unique; strong and

®-I

Regular tapping screws are manufac-tough in the load bearing areas but

this test. A ½-13 diameter CORFLEXscrew withstands a 25° body bend after

tured from low-carbon steel case

having formed an internal thread with a

very hard in the thread rolling area.

95% engagement in a section of 5/8” thick-hardened to 107 ksi minimum

The combination of strength and

ness of cold rolled steel.

strength.

toughness enables, the

CAN ANY OTHER SELF-THREADING SCREW

Metric Grade 9.8 or inch Grade 5 ma-CORFLEX®-I screw to bend without

DO AS MUCH?

chine screws are manufactured to 930

breaking and withstand alternating or

MPA and 120 ksi minimum respec-cyclical loads. Tension can be applied

tively. They are manufactured from

and relaxed almost indefinitely with-low to medium carbon alloy or boron

out encouraging fatigue cracking.

intensified steel.

CORFLEX®-N versions of

Metric Grade 10.9 or inch Grade 8 ma-TAPTITE II®, TAPTITE® CA and

chine screws are manufactured from

DUO-TAPTITE® screws are neutral

medium carbon alloy steel to 1040

hardened and tempered to desired

MPA and 150 ksi strength respec-strength or grade level. A subsequent

tively.

zone hardening of the thread rolling

®point is not necessary as the intended

But until CORFLEX-I technology,

use of CORFLEX®-N screws and bolts

Above is an illustration of the excellent

there was no thread-forming or

thread-rolling fastener with both the

is in soft ductile non-ferrous materials,

thread forming capability of a

®®such as zinc and aluminum. Addition-CORFLEX-I TAPTITE II bolt in producing

thread forming hardness of a

deep threads of one diameter length or

®tapping screw and the toughness of a

ally, POWERLOK screws are heat

greater in heavy (multiple punch) extrusions

treated to CORFLEX®-N Metallurgy.

grade strength machine screw!

as required for structural applications.

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

HEAT TAILORED FOR EXTRA

RUGGEDNESS

Pin-point precision of high hardness zone in

axial section of CORFLEX®-I TAPTITE II®

screw is shown by crescent shaped area in

chemically etched mounts.

Head Dimensions: All TRILOBULAR™

Finish: TRILOBULAR™ screws and bolts

INSPECTION PROCEDURE:

screws and bolts can be provided with any can be supplied with all commercially avail-TRILOBULAR™ products can be

standard head style, to ISO, ANSI or any able finishes and coatings. Electroplated

checked with standard micrometers for

other international standard. finishes should be avoided on high strength D and 60° vee-anvil micrometers for C.

grades. The addition of a wax lubricant is

Alternatively, C may be gauged using

Lengths: TAPTITE II®, DUO-TAPTITE® and

recommended on high surface friction fin-plain-hole ring gauges. These must

POWERLOK® screws and bolts are manufac-ishes such as zinc. Electroplated fasteners

have accurate holes as tabled for mini-tured to applicable local standards on thread

should be baked. mum and as tabled plus .025mm (.001

length and screw length. Tolerances listed in

inch) for maximum.

brochure are suggested only. Due to the

Options: All TRILOBULAR™ products can

greater manufacturing variation in producing

be supplied with several optional configura-gimlet pointed screws, EXTRUDE-TITE® and

tions, i.e. with shoulders, dog points, and

TAPTITE® CA screws are manufactured to

with washer assembly. TAPTITE II®

tolerancing as stated on Page 13. PLASTITE® screws can be supplied with optional cap-and PUSHTITE® II screws are manufactured

tive point or with “CA” gimlet point (see

to length tolerances as stated on Pages 18 -

Page 5).

20.

Optional Extras: Tables in this brochure

Available Sizes: Sizes listed are the most cover only the standard, thread

popular standard sizes. TRILOBULAR™ prod-configurations and point styles available on

DISCLAIMER CLAUSE

ucts can be supplied in standard miniature TAPTITE II®/DUO-TAPTITE®

screw and large bolt sizes not listed. Special

CORFLEX® parts. Many variations are pos-The values shown are for guidance

sible including:

size/pitch combinations are also available.

only. They are not to be used for de-

sign criteria. Their use and reliance

Materials: TRILOBULAR™ screws and bolts - Sems versions with captive washers.

thereon for any purpose by anyone is

are manufactured from low to medium car-Extra large heads and/or underhead col-entirely voluntary and at the sole risk

bon steel in the case hardened version and lars to suit individual needs.

of the user. REMINC is not responsible

from various grades of alloy steel to meet the - Underhead earthing nibs to ensure earth

for any loss, claim, or damage result-grade strength requirements of CORFLEX®-I

continuity through painted

ing from their use. Consult our applica-selective hardened version.

surfaces;

tion engineers or the application engi-

- Unrolled root diameter dog points to

®neering department of one of our

Metallurgy: TAPTITE II screws are sup-assist location;

many qualified producers for your spe-plied in two metallurgical categories; case

- Unrolled pitch-diameter ‘captive’ dog

cific application data.

hardened or selective hardened to REMINC

points for extra security;

®

CORFLEX grade strength levels. Applicable

- Partly threaded shanks for captive

ORDERING/SUPPLY:

standards would include SAE-J81 for inch

screws in cover plates;

When ordering from qualified

screws and SAE-J1237 for metric.

- Security drive systems for tamper resis-TRILOBULAR™ producers, be sure in

TAPTITE II® CORFLEX®-I screws can be sup-tance.

all cases to specify thread size, nomi-plied to metric grades equivalent to 8.8, 10.9

nal length, head and point style,

and 12.9 and inch Grades 8 and 5 or to spe-Performance: TAPTITE II® and

whether it is TAPTITE II® or

DUO-TAPTITE® screws in either case hard-cial hardness and toughness requirements.

®DUO-TAPTITE etc., strength grade if

ened or CORFLEX® version meet or exceed

®®Case hardened fasteners are not recom-the performance requirements of SAE-J81,

CORFLEX-N or CORFLEX-I is in-mended for use in die cast or extruded alumi-J1237, DIN 7500, GM 6171M,GM6202M,

volved, any other special features re-num or zinc particularly when galvanic condi-Ford WD-951 and 952, Ford ES-20003-quired, finish and quantity.

tions, severe load or thermal cycling is pre-S100 as well as several other automotive,

TECHNICAL ASSISTANCE:

sent. CORFLEX®-I or CORFLEX®-N are recom-OEM, and industrial specifications. POWER-This brochure contains basic informa-®mended for these conditions.

screws meet the performance re-LOKtion needed to achieve the cost sav-

®quirements of IFI-124 and 524.

ings potential of TRILOBULAR™ fas-POWERLOK screws are manufactured to

teners.

metric Grade 10.9 or inch Grade 8.

The following are aids to assist on the use

®POWERLOK screws can be provided as case

of TAPTITE II® and DUO-TAPTITE® fasten-To obtain further assistance and a list

hardened but are not recommended unless

ers.

of qualified manufacturers, call

used in a light duty application.

REMINC at 401-841-8880 or E-mail at

Percent thread chart ……………… Page 8

reminc@.

All TRILOBULAR™ products can be produced

Pilot hole sizes ……………………… Page 9

in various stainless steel grades or from non-Typical torque performance ….. Page 10

REGISTERED TRADEMARKS LICENSED

ferrous materials. (Stainless steel and non-Typical single punch

BY REMINC USED IN THIS BROCHURE

ferrous product have limitations on thread

extruded holes ………… Pages 11 & 12

TAPTITE II®, TYPE TT®, DUO-TAPTITE®,

forming capabilities.)

Die cast cored holes …………..… Page 12

EXTRUDE-TITE®, POWERLOK®, KLEERLOK®,

CORFLEX® …………………….… Page 21

THE CONTROLLABLE PRODUCT®, CORFLEX®,

COPYRIGHT 2001, Research Engineering & Manufacturing Inc.

PLASTITE®, ENGINEERED FASTENINGS®

RS Technologies Fastener Test

Equipment

Measures torque and tension vs.

angle, combined with electronic

data acquisition

Tukon Micro-Hardness Tester

Provided micro-hardness and

micro-structure analysis

Junkers Design Transverse

Vibration Tester

Simulates accelerated service

conditions to predict joint integrity.

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