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Fastener Technical Guide

Conversion Tables Imperial, Fractions, Metric, Decimal Specifications: Hexagon Heads, Socket Screws Material Reference, Hardness Comparisons

The Most Comprehensive

All you need to know.....and more

134

Registered to: ISO 9001:2008 Certificate N C ifi Number: QM26 888 b QM2658 Tel: 0121 525 1137 Fax: 0121 525 3525

Contents

1 2 3 4 5 6 7 8 9 Contents Useful Conversion Chart Hex Head Bolts and Set Screws Metric Hex Head Bolts and Set Screws UNC / UNF Hex Head Bolts and Set Screws BSF / BSW Socket Cap Screws Metric Socket Low Head Cap Screws Metric Din 7984 & 6912 Socket Cap Screws CX Type BSW / BSF Socket Cap Screws Low Head BSW / BSF / UNC / UNF 1960 Series Socket Cap Screws UNC / UNF Socket Cap Screws BSW / BSF 11 Socket Caps BA & Socket Countersunk BA 12 Socket Countersunk Screws UNC / UNF & BSW / BSF 13 Metric Socket Countersunk Dimensions 90° & 60° 14 Square Head Set Screws Metric & UNC / UNF / BSF / BSW 15 Socket Shoulder Screws UNF / UNC / BSW / BSF & Metric 16 Socket Set Screws UNC / UNF / BSW / BSF 17 Socket Set Screws BA & Metric 18 Socket Button Heads BA & Metric 19 Socket Button Heads BSF / BSW / UNF / UNC Socket Pressure Plugs - Metric 20 Socket Pressure Plugs BSPT & NPTF 21 I.S.O. Metric Coarse Threads 22 I.S.O. Metric Fine Threads in mm 23 U.N.C. Coarse Thread Series 24 U.N.F. Fine Thread Series 25 B.S.F. Threads (55°) 26 Whitworth Threads (55°) 27 British Standard Pipe Threads 28 Hardness Conversions For Steel 29 Conversion Table (Metric to Inch) 30 Conversion Table (Fraction - Inch - Metric) 10 1936 Series Socket Cap Screws UNC / UNF

1

Useful Conversion Chart

Across Corners Centimetres to inches Feet to inches Gallons to litres Inches to centimetres Kilograms to lbs Kilograms to tons Metres to feet Millimetres to inches N/mm2 to tons f/in2 Pounds to kilograms Square Feet to Sq. metres Square Metres to Sq. feet Tons p/sq in to kilo p/sq mm Tons f/in.2 to N/mm2 Tons to Kilograms 1 metric tonne 1 i nc h 1 foot 1 foot 1 foot 1 millimetre 1 metre 1 metre 1 metre Grade 8.8 Grade 10.9 Grade 12.9 Grade 14.9 Multiply A/F by Multiply by Mul ti pl y by Multiply by Multiply by Multiply by Multiply by Mul ti pl y by Multiply by Multiply by Multiply by Multiply by Multiply by Multiply by Multiply by Multiply by 1000 kilos 25.4 millimetres 304.8 millimetres 30.48 centimetres 12 i nc hes 0.39370 inches 39.370 i nc hes 1000 millimetres 100 centimetres 22-32 Hrc 32-39 Hrc 39-44 Hrc 45-53 Hrc 1.1547 0.3937 0.3048 4.536 2.54 2.205 0.0009842 3.281 0.0394 0.06475 0.4536 0.09290 10.76 1.575 15.444 1016.0

These dimensions are for use as guide purposes only

2

Hex Head Bolts and Set Screws Metric BS3692

THRD SIZE M1.6 M2 M2.5 M3 M4 M5 M6 M7 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M48 M56 M64 PITCH (T.P.I) 0.35 0.4 0.45 0.5 0.7 0.8 1.0 1.0 1.25 1.5 1.75 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.5 6.0 actual Hex Flat 3.2 4 5 5.5 7 8 10 11 13 17 19 22 24 27 30 32 36 41 46 50 55 60 65 75 85 95 nom Hex Corners 3.7 4.6 5.8 6.4 8.1 9.2 11.5 12.7 15 19.6 21.9 25.4 27.7 31.2 34.6 36.9 41.6 47.3 53.1 57.7 63.5 69.3 75 86.6 98.1 109.7 max Head Height 1.23 1.53 1.83 2.13 2.93 3.65 4.15 4.90 5.65 7.18 8.18 9.18 10.18 12.22 13.22 14.22 15.22 17.22 19.26 21.26 23.26 25.26 26.26 30.26 35.31 40.31 max Shank Dia Min 1.46 1.86 2.36 2.86 3.82 4.82 5.82 6.82 7.78 9.78 11.73 13.73 15.73 17.73 19.67 21.67 23.67 26.67 29.67 32.61 35.61 38.61 41.61 47.61 55.61 63.61 min Bolt T.L. 10 10 11 12 14 16 18 20 22 26 30 34 38 42 46 50 54 60 66 72 78 84 90 102 118 134 min

For lengths 125mm to 200mm add 6mm to T.L. above For lengths over 200mm add 19mm to T.L. above These dimensions are for use as guide purposes only

3

Hex Head Bolts and Set Screws UNC / UNF BS1768

THRD SIZE No.4 No.5 No.6 No.8 N.10 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1" 1.1/8 1.1/4 1.3/8 1.1/2 1.3/4 2" 2.1/2 3" 3.1/2" 4" PITCH UNC 40 40 32 32 24 20 18 16 14 13 11 11 10 9 8 7 7 6 6 5 4.5 4 4 4 4 actual PITCH UNF 48 44 40 36 32 28 24 24 20 20 18 18 16 14 12 12 12 12 12 12 12 12 12 12 12 actual Hex Flat .187 .188 .250 .250 .312 .437 .500 .562 .625 .750 .812 .937 1.125 1.312 1.500 1.687 1.875 2.062 2.250 2.625 3.000 3.750 4.500 5.250 6.000 max Hex Head Corners Height .216 .217 .289 .289 .360 .505 .577 .650 .722 .866 .938 1.083 1.300 1.515 1.732 1.948 2.165 2.382 2.598 3.031 3.464 4.330 5.196 6.062 6.928 max .060 .070 .093 .110 .120 0.163 0.211 0.243 0.291 0.323 0.371 0.403 0.483 0.563 0.627 0.718 0.813 0.878 0.974 1.134 1.263 1.583 1.935 2.193 2.576 max Bolt T.L. .474 .500 .526 .578 .630 .750 .875 1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.750 3.00 3.250 3.750 4.250 5.250 6.250 6.750 8.250 min

For lengths 5" to 8" add 1/4" to T.L. above For lengths over 8" add 3/4" to T.L. above These dimensions are for use as guide purposes only

4

Hex Head Bolts and Set Screws BSF / BSW BS1083

THRD SIZE 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1" 1.1/8 1.1/4 1.3/8 1.1/2 1.3/4 2" 2.1/2 3" 3.1/2" 4" PITCH BSF 26 22 20 18 16 16 14 12 11 10 9 9 8 8 7 7 6 5 4.5 4.5 actual PITCH BSW 20 18 16 14 12 12 11 10 9 8 7 7 6 6 5 4.5 4 3.5 3.25 3.0 actual Hex Flat .445 .525 .600 .710 .820 .920 1.010 1.200 1.300 1.480 1.670 1.860 2.050 2.220 2.580 2.760 3.550 4.180 4.810 5.440 max Hex Head Corners Height .510 .610 .690 .820 .950 1.060 1.170 1.390 1.50 1.71 1.93 2.15 2.37 2.56 2.98 3.19 4.10 4.83 5.55 6.23 max .176 .218 .260 .302 .343 .375 .417 .500 .583 .666 .750 .830 .920 1.000 1.170 1.330 1.670 2.000 2.330 2.660 max Bolt T.L. .750 .875 1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.750 3.00 3.250 3.750 4.250 5.250 6.250 6.750 8.250 min

For lengths 5" to 8" add 1/4" to T.L. above For lengths over 8" add 3/4" to T.L. above Calculation From A/F To A/C = A/F x 1.1547

These dimensions are for use as guide purposes only

5

Socket Cap Screws Metric

THRD SIZE M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 M48 M56 M64 PITCH (T.P.I) 0.35 0.4 0.45 0.5 0.7 0.8 1.0 1.25 1.5 1.75 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 actual HEAD HGT 1.6 2.0 2.5 3.0 4.0 5.0 6.0 8.0 10.0 12.0 14.0 16.0 20.0 24.0 30.0 36.0 42.0 48.0 56.0 64.0 max HEAD DIA 3.0 3.8 4.5 5.5 7.0 8.5 10.0 13.0 16.0 18.0 21.0 24.0 30.0 36.0 45.0 54.0 63.0 72.0 84.0 96.0 max SKT A/F 1.5 1.5 2.0 2.5 3.0 4.0 5.0 6.0 8.0 10.0 12.0 14.0 17.0 19.0 22.0 27.0 32.0 36.0 41.0 46.0 nom SKT DPTH 0.7 1.0 1.1 1.3 2.0 2.5 3.0 4.0 5.0 6.0 7.0 8.0 10.0 12.0 15.5 19.0 24.0 28.0 34.0 38.0 min MIN T.L. 15 16 17 18 20 22 24 28 32 36 40 44 52 60 72 84 96 108 124 140 min

*Dimensions in millimetres.

These dimensions are for use as guide purposes only

6

Metric Low Head Cap Screws - Din 7984 THRD PITCH HEAD HEAD SIZE (T.P.I) HGT DIA M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 0.50 0.70 0.80 1.00 1.25 1.50 1.75 2.00 2.00 2.50 2.50 2.50 3.00 3.00 2.3 2.8 3.5 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 15.0 5.5 7.0 8.5 10.0 13.0 16.0 18.0 21.0 24.0 27.0 30.0 33.0 36.0 40.0 SKT A/F 2.0 2.5 3.0 4.0 5.0 7.0 8.0 10.0 12.0 12.0 14.0 14.0 17.0 17.0 SKT DPTH 2.0 2.3 2.7 3.0 4.2 4.8 5.3 5.5 5.5 7.5 7.5 8.0 8.0 9.0 MIN T.L. 18 20 22 24 28 32 36 40 44 48 52 56 60 66

actual max max nom min min Metric Low Head Cap Screws - Din 6912 THRD PITCH HEAD HEAD SKT SIZE (T.P.I) HGT DIA A/F M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 0.70 0.80 1.00 1.25 1.50 1.75 2.00 2.00 2.50 50 2.50 2.50 3.00 3.00 2.8 3.5 4.0 5.0 6.5 7.5 8.5 10.0 11.0 0 12.0 13.0 14.0 16.0 7.0 8.5 10. 13.0 16.0 18.0 21.0 24.0 27.0 30.0 33.0 36.0 40.0 max 3.0 4.0 5.0 6.0 8.0 10.0 12.0 14.0 14.0 0 17.0 17.0 19.0 19.0 nom SKT PILOT PILOT DPTH DIA DPTH 1.6 2.0 2.5 3.0 3.5 4.0 4.5 5.5 6.0 6.5 7.0 7.0 8.5 nom 2.0 2.5 3.0 4.0 5.0 6.0 7.0 8.0 8.0 00 10.0 10.0 12.0 12.0 nom 3.0 4.0 5.0 5.5 7.5 9.0 10.0 11.5 12.5 0 14.0 15.0 16.0 17.0 min MIN T.L. 20 22 24 28 32 36 40 44 48 5 52 56 60 66 min

actual max

These dimensions are for use as guide purposes only

7

CX Socket Cap Screws BSW / BSF

THRD BSW BSF HEAD HEAD SKT SKT SIZE PITCH PITCH HGT DIA A/F DPTH 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 20 18 16 14 12 11 10 9 8 26 22 20 18 16 14 12 11 10 .250 .312 .375 .437 .500 .625 .750 .875 1.00 .437 .500 .625 .750 .875 1.00 1.125 1.312 1.50 max 3/16 7/32 5/16 5/16 3/8 1/2 9/16 9/16 5/8 nom .120 .151 .182 .213 .245 .307 .370 .432 .495 min MIN T.L. 1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 min

actual actual max

Socket Cap Screws Low Head BSW / BSF / UNC / UNF

THRD BSW BSF UNC UNF HEAD HEAD SIZE PITCH PITCH PITCH PITCH HGT DIA No.8 No.10 3/16 1/4 5/16 3/8 7/16 1/2 5/8 3/4 1 n/a n/a 24 20 18 16 14 12 11 10 8 n/a n/a 32 26 22 20 18 16 14 12 10 32 24 n/a 20 18 16 14 13 11 10 8 36 32 n/a 28 24 24 20 20 18 16 12 .082 .095 .095 .125 .156 .187 .218 .250 3 .312 .375 .500 .270 .312 .312 .375 .437 .562 .625 .750 8 5 .875 1.00 1.312 max SKT A/F 5/64 3/32 3/32 1/8 5/32 3/16 7/32 1/4 5/ 6 5/16 3/8 1/2 nom SKT DPTH .060 .072 .072 .094 .120 .145 .164 .184 0 .240 .276 .338 min

actual actual actual actual max

These dimensions are for use as guide purposes only

8

1960 Series Socket Cap Screws

UNC / UNF THRD UNC UNF HEAD HEAD SIZE PITCH PITCH HGT DIA No.3 No.4 No.5 No.6 No.8 No.10 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1" 1.1/8 1.1/4 1.3/8 1.1/2 1.5/8 1.3/4 2" 48 40 40 32 32 24 20 18 16 14 13 11 10 9 8 7 7 6 6 5 5 4.5 actual 56 48 44 40 36 32 28 24 24 20 20 18 16 14 12 12 12 12 12 12 12 12 actual .099 .112 .125 .138 .164 .190 .250 .312 .375 .437 .500 .625 .750 .875 1.00 1.125 1.250 1.375 1.500 1.625 1.750 2.000 max .161 .183 .205 .226 .270 .312 .375 .469 .562 .656 .750 .938 1.125 1.312 1.500 1.687 1.875 2.062 2.250 2.437 2.625 3.000 max SKT A/F 5/64 3/32 3/32 7/64 9/64 5/32 3/16 1/4 5/16 3/8 3/8 1/2 5/8 3/4 3/4 7/8 7/8 1 1 1.1/4 1.1/4 1.1/2 nom SKT DPTH .044 .051 .057 .064 .077 .090 .120 .151 .182 .213 .245 .307 .370 .432 .495 .557 .620 .682 .745 .807 .870 .995 min MIN T.L. .625 .750 .750 .750 .875 .875 1.00 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.812 3.125 3.437 3.750 4.062 4.375 5.000 min

These dimensions are for use as guide purposes only

9

1936 Series Socket Cap Screws

UNC / UNF THRD UNC UNF HEAD HEAD SIZE PITCH PITCH HGT DIA No.3 No.4 No.5 No.6 No.8 No.10 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1" 48 40 40 32 32 24 20 18 16 14 13 11 10 9 8 actual 56 48 44 40 36 32 28 24 24 20 20 18 16 14 12 actual .099 .112 .125 .138 .164 .190 .250 .312 .375 .437 .500 .625 .750 .875 1.00 max .161 .183 .205 .226 .270 .312 .375 .437 .562 .625 .750 .875 1.0 1.125 1.312 max SKT A/F 5/64 5/64 3/32 3/32 1/8 5/32 3/16 7/32 5/16 5/16 3/8 1/2 9/16 9/16 5/8 nom SKT DPTH .044 .051 .057 .064 .077 .090 .120 .151 .182 .213 .245 .307 .370 .432 .495 min MIN T.L. .625 .750 .750 .750 .875 .875 1.00 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 min

Socket Cap Screws

BSF / BSW

THRD BSF BSW HEAD HEAD SIZE (T.P.I.) (T.P.I.) HGT DIA 3/16 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1" 32 26 22 20 18 16 14 12 11 10 actual 24 20 18 16 14 12 11 10 9 8 actual .187 .250 .312 .375 .437 .500 6 5 .625 .750 .875 1.00 max .312 .375 .437 .562 .625 .750 .875 1.00 1.125 1.312 max

SKT A/F 5/32 3/16 7/32 5/16 5/16 3/8 / 1/2 9/16 9/16 5/8 nom

SKT DPTH .089 .120 .151 .182 .213 .245 30 .307 .370 .432 .495 min

MIN T.L. 7/8 1" 1.1/8 1.1/4 1.3/8 1.1/2 3/ 1.3/4 2" 2.1/4 2.1/2 min

These dimensions are for use as guide purposes only

10

Socket Cap Screws BA (British Association)

THRD PITCH HEAD HEAD SIZE (T.P.I.) HGT DIA 8BA 7BA 6BA 5BA 4BA 3BA 2BA 1BA 0BA 59.14 52.92 47.91 43.08 38.49 34.81 31.36 28.23 25.4 actual .087 .098 .110 .126 .142 .161 .187 .209 .236 max .140 .163 .187 .219 .219 .250 .312 .312 .375 max SKT A/F 1/16 1/16 5/64 3/32 3/32 1/8 5/32 5/32 3/16 nom SKT DPTH .039 .044 .050 .058 .066 .075 .089 .100 .113 min MIN T.L. .750 .750 .750 .750 .750 .875 .875 1.00 1.00 min BODY DIA. .087 .098 .110 .126 .142 .161 .185 .209 .236 max

Socket Countersunk Screws BA (British Association)

THRD PITCH HEAD HEAD SIZE (T.P.I.) HGT DIA 8BA 6BA 5BA 4BA 3BA 2BA 1BA 0BA 59.14 47.91 43.08 38.49 34.81 31.36 28.23 25.4 actual .038 .050 .056 .063 .072 .083 .093 .106 ref .147 .189 .215 .243 .277 .319 .360 .408 min SKT A/F .050 .050 1/16 1/16 5/64 3/32 3/32 1/8 nom SKT DPTH .030 .040 .045 .050 .057 .065 .072 .080 min MIN T.L. .625 .750 .750 .750 .875 .875 1.000 1.000 min BODY DIA. .087 .110 .126 .142 .161 .185 .209 .236 max

These dimensions are for use as guide purposes only

11

Socket Countersunk Screws UNC / UNF

THRD UNC UNF HEAD HEAD SKT SKT SIZE PITCH PITCH HGT DIA A/F DPTH No.0 No.1 No.2 No.3 No.4 No.5 No.6 No.8 No.10 1/4 5/16 3/8 7/16 1/2 5/8 3/4 n/a 64 56 48 40 40 32 32 24 20 18 16 14 13 11 10 80 72 64 56 48 44 40 36 32 28 24 24 20 20 18 16 MIN T.L. HEAD ANG.

0.046 0.117 0.035 0.025 0.500 80/82 0.057 0.143 0.050 0.031 0.625 80/82 0.066 0.168 0.050 0.038 0.625 80/82 0.075 0.193 0.085 0.218 0.093 0.240 0.100 0.263 0.116 0.311 0.131 0.359 0.167 0.476 0.205 0.589 0.241 0.704 0.242 0.755 0.260 0.857 0.335 1.065 0.410 1.293 ref min 1/16 1/16 5/64 5/64 3/32 1/8 5/32 3/16 7/32 1/4 5/16 3/8 1/2 nom 0.044 0.625 80/82 0.055 0.750 80/82 0.061 0.750 80/82 0.066 0.750 80/82 0.076 0.875 80/82 0.087 0.875 80/82 0.111 1.000 80/82 0.135 1.125 80/82 0.159 1.250 80/82 0.159 1.375 80/82 0.172 1.500 80/82 0.220 1.750 80/82 0.220 2.000 80/82 min min actual

actual actual

Socket Countersunk Screws BSF / BSW

THRD BSF BSW HEAD HEAD SKT SKT SIZE PITCH PITCH HGT DIA A/F DPTH 1/8 3/16 1/4 5/16 3/8 / 6 7/16 1/2 5/8 3/4 48 32 26 22 20 18 16 14 12 40 24 20 18 16 14 12 11 10 .057 .084 .112 .140 .168 96 .196 .225 .281 .337 ref .215 .323 .432 .542 .651 6 .761 .870 1.089 1.308 min 1/16 3/32 5/32 3/16 7/32 / 1/4 5/16 3/8 3/8 nom .043 .065 .093 .105 .125 5 .145 .165 .220 .220 min

MIN T.L. .750 .875

HEAD ANG. 89/91 89/91

1.000 89/91 1.125 89/91 1.250 89/91 89/9 1.375 89/91 1.500 89/91 1.750 89/91 2.000 89/91 min actual

actual actual

These dimensions are for use as guide purposes only

12

Metric Socket Countersunk Dimensions 90 Degree Head Diameter

THRD SIZE M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 PITCH (T.P.I) 0.50 0.70 0.80 1.00 1.25 1.50 1.75 2.00 2.00 2.5 2.5 actual HEAD HGT 1.86 2.48 3.10 3.72 4.96 6.20 7.44 8.40 8.80 9.40 10.16 max HEAD DIA 5.54 7.53 9.43 11.34 15.24 19.22 23.12 26.52 29.01 32.53 36.05 min SKT A/F 2.0 2.5 3.0 4.0 5.0 6.0 8.0 10.0 10.0 10.0 12.0 nom SKT DPTH 1.1 1.5 1.9 2.2 3.0 3.6 4.3 4.5 4.8 5.2 5.6 min MIN T.L. 18 20 22 24 28 32 36 40 44 48 52 min

Head angle can now differ between 90 and 60 Degree Below are dimensions to be used as a guide only

Metric Socket Countersunk Dimensions 90 Degree Head Diameter

THD SIZE M24 M30 PITCH (T.P.I) 3.0 3.5 actual HEAD HGT 11.50 14.75 ref HEAD DIA 45.00 53.00 actual SKT A/F 14.00 17.00 nom SKT DPTH 6.36 7.65 min MIN T.L. 60 72 min

Metric Socket Countersunk Dimensions 60 Degree Head Diameter

THD SIZE M24 M30 PITCH (T.P.I) 3.0 3.5 actual HEAD HGT 14.22 21.65 ref HEAD DIA 39.00 48.00 actual SKT A/F 14.00 17.00 nom SKT DPTH 10.20 12.00 min MIN T.L. 60 72 min

These dimensions are for use as guide purposes only

13

Square Head Set Screws UNC / UNF / BSF / BSW

THRD HEAD HEAD CUP DIA DOG SIZE A/F HGT & FLAT DIA 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1.1/8 1.1/4 1.3/8 1.1/2 .188 .250 .312 .375 .437 .500 .562 .625 .750 .875 1.000 1.125 1.250 1.375 1.500 max .148 .196 .245 .293 .341 .389 .437 .485 .582 .678 .774 .870 .966 1.063 1.159 max .102 .132 .172 .212 .252 .291 .332 .371 .450 .530 .609 .689 .767 0.848 0.926 max .127 .156 .203 .250 .297 .344 .391 .469 .563 .656 .750 .844 .938 1.031 1.125 max DOG LTH .045 .063 .078 .094 .109 .125 .140 .156 .188 .219 .250 .281 .312 .344 .375 +/- 0.1

Square Head Set Screws - Metric

THRD PITCH HEAD HEAD CUP DIA DOG H.DOG F.DOG SIZE (T.P.I) A/F HGT & FLAT DIA LTH LTH M5 M6 M8 M10 M12 M14 M16 8 M18 M20 M24 0.80 1.00 1.25 1.50 1.75 2.00 2.00 50 2.50 2.50 3.00 actual 5.0 6.0 8.0 10.0 12.0 14.0 16.0 80 18.0 20.0 24.0 max 5.0 6.0 8.0 10.0 12.0 14.0 16.0 80 18.0 20.0 24.0 max 2.5 3.0 5.0 6.0 8.0 9.0 10.0 12.0 14.0 18.0 max 3.5 4.0 5.5 7.0 8.5 10.0 12.0 35 13.5 15.0 18.0 max 1.50 1.75 2.25 2.75 3.25 3.75 4.30 5 30 5.30 6.30 8.30 max 2.75 3.25 4.30 5.30 6.30 7.30 8.36 0 36 10.36 12.43 17.40 max

Dimensions based on Din 479 and similar. These dimensions are for use as guide purposes only

14

Socket Shoulder Screws UNF / UNC / BSW / BSF

NOM DIA. 1/4 5/16 3/8 1/2 5/8 3/4 1 MAX DIA .2480 .3105 .3730 .4980 .6230 .7480 .9980 MIN DIA .3085 .3710 .4960 .6210 .7460 .9960 THRD THD SKT SKT HEAD HEAD DIA LTH DPTH A/F DIA HGT .094 .117 .141 .188 .234 .281 .374 .520 .640 min 1/8 5/32 3/16 1/4 5/16 3/8 1/2 5/8 3/4 nom .375 .438 .563 .750 .875 1.00 1.625 2.00 max .188 .219 .250 .313 .375 .500 .750 1.00 max 1/4 5/16 3/8 1/2 5/8 3/4 .438 .500 .625 .750 .875 1.000

.2460 No.10* .375

1.5/16 .625

1.1/4 1.2480 1.2460 1 1.125 1.1/2 1.4980 1.4960 1.1/4 1.312 max min nom max

* For BSW / BSF this dimension is 3/16

Socket Shoulder Screws Metric Metric

NOM DIA. 4 5 6 8 10 12 16 20 24 27 30 MAX DIA 3.99 4.99 5.99 7.987 9.987 MIN DIA 3.96 4.96 5.96 7.951 9.951 THRD NOM SKT SKT HEAD HEAD DIA T.L. DPTH A/F DIA HGT M3 M4 M5 M6 M8 7.0 8.0 9.5 11.0 13.0 16.0 18.0 22.0 0 27.0 31.0 35.0 nom 1.8 2.1 2.4 3.3 4.2 4.9 6.6 8.8 00 10.0 12 14 min 2.0 2.5 3.0 4.0 5.0 6.0 8.0 10.0 0 12.0 12.0 14 nom 8.0 8.5 10.0 13.0 16.0 18.0 24.0 30.0 36.0 41.0 46 max 3.5 4.0 4.5 5.5 7.0 9.0 11.0 14.0 60 16.0 18 21 max

11.984 11.941 M10 15.984 15.941 M12 19.980 19.928 M16 3 980 3 9 8 0 23.980 23.928 M20 26.980 26.928 M24 29.980 29.928 M27 max min nom

These dimensions are for use as guide purposes only

15

Socket Set Screws UNC / UNF / BSW / BSF

THRD BASIC SIZE DIA No.0 No.1 No.2 No.3 No.4 No.5 No.6 No.8 No.10 1/4 5/16 3/8 7/16 1/2 5/8 3/4 7/8 1 1.1/8 1.1/4 1.1/2 .060 .073 .086 .099 .112 .125 .138 .164 .190 .250 .312 .375 .437 .500 .625 .750 .875 1.00 1.125 1.250 1.500 nom SKT A/F .028 .035 .035 .050 .050 1/16 1/16 5/64 3/32 1/8 5/32 3/16 7/32 1/4 5/16 3/8 1/2 9/16 9/16 5/8 3/4 nom SKT FLAT & H.DOG H.DOG F.DOG DPTH CUP DIA DIA LTH LTH .022 .028 .028 .040 .040 .050 .050 .062 .075 .100 .125 .150 .175 .200 .250 .300 .400 .450 .650 .700 .750 min .033 .040 .047 .054 .061 .067 .074 .087 .102 .132 .172 .212 .252 .291 .371 .450 .530 .609 .689 .767 .926 max .040 .049 .057 .066 .075 .083 .092 .109 .127 .156 .203 .250 .297 .344 .469 .562 .656 .750 .843 .937 1.125 max .017 .021 .024 .027 .030 .033 .038 .043 .049 .067 .082 .099 .114 .130 .164 .196 .227 .260 .291 .323 .385 max .034 .042 .048 .054 .060 .066 .076 .086 .098 .134 .164 .198 .228 .260 .328 .392 .454 .520 .582 .646 .770 max

Cone Point Socket Sets: As a general rule, the cone point angle is 90 degrees. This changes when the length is shorter than or equal to the thread diameter, for M3 diameter and above. The cone point angle then changes to 118 degrees. These dimensions are for use as guide purposes only

16

Socket Set Screws BA

THRD PITCH SKT SIZE (T.P.I) A/F 8BA 6BA 5BA 4BA 3BA 2BA 1BA 0BA 59.14 47.91 43.08 38.49 34.81 31.36 28.23 25.4 actual .035 .050 1/16 1/16 5/64 3/32 3/32 1/8 nom SKT CUP H.DOG H.DOG FLAT DPTH DIA DIA LTH DIA .030 .040 .050 .050 .062 .075 .075 .100 min .047 .061 .067 .074 .087 .102 .115 .132 max .057 .075 .083 .092 .109 .127 .140 .156 max .024 .030 .033 .038 .043 .049 .059 .067 max .047 .061 .067 .074 .087 .102 .115 .132 max

Socket Set Screws - Metric

SKT CUP DPTH DIA 1.5 1.7 2.0 2.0 2.5 3.0 3.5 5.0 6.0 8.0 9.0 10.0 12.0 15.0 0 17.0 17.0 21.0 min 0.8 1.0 1.2 1.4 2.0 2.5 3.0 5.0 6.0 8.0 9.0 10.0 14.0 16.0 80 18.0 20.0 25.0 max

THRD PITCH SKT SIZE (T.P.I) A/F M1.6 M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M27 M30 M36 0.35 0.4 0.45 0.5 0.7 0.8 1.0 1.25 1.5 1.75 2.0 2.0 2.5 3.0 30 3.0 3.5 4.0 actual 0.7 0.9 1.3 1.5 2.0 2.5 3.0 4.0 5.0 6.0 6.0 8.0 10.0 12.0 0 14.0 14.0 17.0 nom

DOG H.DOG F.DOG FLAT DIA LTH LTH DIA 0.8 1.0 1.5 2.0 2.5 3.5 4.0 5.5 7.0 8.5 10.0 12.0 15.0 18.0 05 20.5 22.5 27.0 max 0.65 0.75 0.88 1.00 1.25 1.50 1.75 2.25 2.75 3.25 3.75 4.30 5.30 6.30 6 80 6.80 7.30 8.80 max 1.05 1.25 1.50 1.75 2.25 2.75 3.25 4.30 5.30 6.30 7.30 8.36 10.36 12.43 13.43 14.52 17.52 max 0.8 1.0 1.5 2.0 2.5 3.5 4.0 5.5 7.0 8.5 10.0 12.0 15.0 18.0 05 20.5 22.5 27 max

Socket depths may alter on shorter lengths. These dimensions are for use as guide purposes only

17

Socket Button Head Screws - Metric

THRD PITCH HEAD HEAD SIZE (T.P.I) HGT DIA M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 0.5 0.7 0.8 1.0 1.25 1.5 1.75 2.0 2.0 2.5 3.0 actual 1.65 2.20 2.75 3.30 4.40 5.50 6.60 7.70 8.80 11.0 13.2 max 5.70 7.60 9.50 10.50 14.00 17.50 21.00 24.5 28.00 35.00 42.00 max SKT A/F 2.00 2.50 3.00 4.00 5.00 6.00 8.00 8.00 10.00 12.00 14.00 nom SKT DPTH 1.04 1.30 1.56 2.08 2.60 3.12 4.16 4.67 5.20 6.40 7.70 min MIN T.L. 18.00 20.00 22.00 24.00 28.00 32.00 36.00 40.00 44.00 52.00 60.00 min

Socket Button Heads BA (British Association)

THRD PITCH HEAD HEAD SIZE (T.P.I.) HGT DIA 8BA 6BA 5BA 4BA 3BA 2BA 1BA 0BA 59.14 47.91 43.08 38.49 34.81 31.36 28.23 25.4 actual .046 .059 .066 .073 .087 .101 .114 .132 max .164 .213 .238 .262 .312 .361 .395 .437 max SKT A/F .050 1/16 5/64 5/64 3/32 1/8 1/8 5/32 nom SKT DPTH .028 .035 .044 .044 .052 .070 .078 .087 min MIN T.L. .500 .500 .500 .625 .750 1.000 1.000 1.000 min BODY DIA. .087 .110 .126 .142 .161 .185 .209 .236 max

These dimensions are for use as guide purposes only

18

Socket Button Head Screws - Imperial

THRD BSF BSW UNF UNC HEAD HEAD SIZE (T.P.I.) (T.P.I.) (T.P.I.) (T.P.I.) HGT DIA No.0 No.2 No.4 No.5 No.6 No.8 No.10 1/4 5/16 3/8 1/2 5/8 3/4 n/a n/a n/a n/a n/a n/a n/a 26 22 20 16 14 12 n/a n/a n/a n/a n/a n/a n/a 20 18 16 12 11 10 80 64 48 44 40 36 32 28 24 24 20 18 16 n/a 56 40 40 32 32 24 20 18 16 13 11 10 .032 .046 .059 .066 .073 .087 .101 .132 .166 .199 .265 .331 .398 .114 .164 .213 .238 .262 .312 .361 .437 .547 .656 .875 1.00 1.218 max SKT A/F .035 .050 1/16 5/64 5/64 3/32 1/8 5/32 3/16 7/32 5/16 3/8 1/2 nom SKT DPTH .020 .028 .035 .044 .044 .052 .070 .087 .105 .122 .175 .210 .255 min

actual actual actual actual max

Socket Pressure Plugs - Metric

THRD PITCH SKT SIZE (T.P.I) A/F M8 M10 M12 M14 M16 M18 M20 M22 M24 M26 M27 M30 1.0 1.0 1.5 1.5 1.5 1.5 1.5 1.5 5 1.5 1.5 2.0 2.0 4 5 6 7 8 8 10 10 12 12 12 17 SKT SKT O/ALL WALL A/C DPTH LTH THICK 4.6 5.7 6.9 8 9.2 9.2 11.4 11.4 3 13.7 13.7 13.7 19.4 nom 4 4 5 5 5 5 5 5 6 6 6 6 min 8 8 10 10 10 10 10 10 12 12 12 12 nom 2 2 2 2 2 2 2 2 2 2 2 2 min END DIA 7.350 9.350 11.026 13.026 15.026 17.026 19.026 21.026 23.026 30 6 25.026 26.026 29.026 basic

actual nom

Dimensions based on Din 906 Type.

19

BSPT Socket Pressure Plugs 3/4 Taper

THRD PITCH NOM SIZE (T.P.I) O/D 1/8 1/4 3/8 1/2 5/8 3/4 1 1.1/4 28 19 19 14 14 14 11 11 actual .399 .538 .679 .853 .933 1.072 1.352 1.703 nom SKT A/F 3/16 1/4 5/16 3/8 1/2 9/16 5/8 3/4 nom SKT WALL NOM DPTH THICK LTH .225 .255 .309 .357 .385 .385 .390 .452 min .081 .112 .161 .175 .175 .238 .238 .350 min 3/8 1/2 9/16 11/16 3/4 13/16 1 1.1/4 nom

NPTF Socket Pressure Plugs 3/4 Taper (Dry Seal) / 7/8 Taper (Flush Seal)

THRD PITCH SKT SIZE (T.P.I) A/F 1/16 1/8 1/4 3/8 1/2 3/4 1 1.1/4 27 27 18 18 14 14 11.5 11.5 .156 .188 .250 .312 .375 .562 .625 .750 SKT WALL NOM DPTH THICK O/D .140 .140 .218 .250 .312 .312 .375 .437 min .062 .062 .073 .084 .095 .125 .125 .156 min .312 .405 .540 .675 .840 NOM NOM NOM O/D LTH LTH .307 .401 .529 .667 .830 5/16 5/16 7/16 1/2 9/16 5/8 1/4 1/4 13/32 13/32 17/32 17/32

1.050 1.041

1.315 1.302 3/4 21/32 1.660 1.647 13/16 21/32 3/4 Dry Seal 7/8 Flush Seal 3/4 Dry Seal 7/8 Flush Seal Taper Taper Taper Taper

actual nom

These dimensions are for use as guide purposes only

20

I.S.O. METRIC COARSE THREADS

Thd Pitch Dia M1.6 0.35 M2 M3 M3.5 M4 M5 M6 M7 M8 M10 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M39 M42 M48 M56 M64 0.4 0.5 0.6 0.7 0.8 1.0 1.0 1.25 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.5 6.0 actual M2.5 0.45 Core 1.1706 1.5092 1.9480 2.3866 2.7638 3.1412 4.0184 4.7732 5.7732 6.4664 8.1596 9.8530 Depth Flat Effec 1.373 1.740 2.208 2.675 3.110 3.545 4.480 5.350 6.350 7.188 9.026 Tap Drill 1.25 1.60 2.05 2.50 2.90 3.30 4.20 5.00 6.00 6.80 8.50 Clear Drill 1.65 2.05 2.60 3.10 3.60 4.10 5.10 6.10 7.20 8.20 10.20 12.20 14.25 16.25 18.25 20.25 22.25 24.25 27.25 30.50 33.50 36.50 39.50 42.50 48.75 56.75 64.75

0.2147 0.04375 0.2454 0.05000 0.2760 0.05625 0.3067 0.06250 0.3681 0.07500 0.4294 0.08750 0.4908 0.10000 0.6134 0.12500 0.6134 0.12500 0.7668 0.15625 0.9202 0.18750

M12 1.75

1.0735 0.21875 10.863 10.20

11.5462 1.2269 0.25000 12.701 12.00 13.5462 1.2269 0.25000 14.701 14.00 14.9328 1.5336 0.31250 16.376 15.50 16.9328 1.5336 0.31250 18.376 17.50 18.9328 1.5336 0.31250 20.376 19.50 20.3194 1.8403 0.37500 22.051 21.00 23.3194 1.8403 0.37500 25.051 24.00 25.7060 2.1470 0.43750 27.727 26.50 28.7060 2.1470 0.43750 30.727 29.50 31.0924 2.4538 0.50000 33.402 32.00 34.0924 2.4538 0.50000 36.402 35.00 36.4790 2.7605 0.56250 39.077 37.50 41.8646 3.0672 0.62500 44.752 43.00 49.2522 3.3739 0.68750 52.428 50.50 56.6388 3.6806 0.75000 60.103 58.00 nom max max min min

For lengths 125mm to 200mm add 6mm to T.L. above For lengths over 200mm add 19mm to T.L. above These dimensions are for use as guide purposes only

21

I.S.O. METRIC FINE THREADS IN M.M.

O.Dia 8 10 12 16 20 24 30 36 42 48 56 64 Core 6.773 8.467 10.467 14.160 18.160 21.546 27.546 32.319 38.265 44.28 51.093 59.065 Pitch 1.00 1.25 1.25 1.50 1.50 2.00 2.00 3.00 3.00 3.00 4.00 4.00 Depth Flat Effec 7.35 9.18 11.18 Tap Drill 7.00 8.75 10.75 Clear Drill 9 11 13.5 17.5 21.5 25.5 31.5 38.0 44.0 51.0 59.0 67.0

0.6134 0.125 0.7668 0.156 0.7668 0.156 0.920 0.920 1.226 1.226 1.841 1.841 1.841 2.455 2.455

0.187 15.025 14.50 0.187 19.025 18.50 0.250 0.250 0.375 0.375 0.375 0.500 0.500 22.70 28.70 34.05 40.05 46.05 53.40 61.40 22.00 28.00 32.75 38.75 44.75 51.75 59.75

Manufactured components can be supplied with 31b Certification and Full Traceability on request. All orders pass through our stringent Final Inspection. Orders can be supplied with Certificate of Conformity.

These dimensions are for use as guide purposes only

22

U.N.C. COARSE THREAD SERIES

Dia 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1" 1.1/8 1.1/4 1.3/8 1.1/2 1.3/4 2" T.P.I. 20 18 16 14 13 12 11 10 9 8 7 7 6 6 5 4.1/2 O. Dia .2500 .3125 .3750 .4375 .5000 .5625 .6250 .7500 .8750 Core Nut .1959 .2524 .3073 .3602 .4167 .4723 .5266 .6417 .7547 Core Bolt Pitch Depth Effec

.1887 .05000 .03067 .2175 .2443 .05556 .03408 .2764 .2983 .06250 .03834 .3344 .3499 .07143 .04382 .3911 .4056 0.7692 .04719 .4500 .4603 .08333 .05112 .5084 .5135 .09091 .05577 .5660 .6273 .10000 .06134 .6850 .7387 .11111 .06816 .8028 .8466 .12500 .07668 .9188 .9497 .14286 .08763 1.0322

1.0000 .8647 1.1250 .9704

1.2500 1.0954 1.0747 .14286 .08763 1.1572 1.3750 1.1946 1.1705 .16667 .10224 1.2667 1.5000 1.3196 1.2955 1.6667 .10224 1.3917 1.7500 1.5335 1.5046 .20000 .12269 1.6201 2.0000 1.7594 1.7274 .22222 .13632 1.8557

Full Chemical and Mechanical Laboratory Testing available. Technical Knowledge and advice available at no extra cost.

These dimensions are for use as guide purposes only

23

U.N.F. FINE THREAD SERIES

Dia 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1" 1.1/8 1.1/4 1.3/8 1.1/2 T.P.I. 28 24 24 20 20 18 18 16 14 12 12 12 12 12 O. Dia .2500 .3125 .3750 .4375 .5000 .5625 .6250 .7500 .8750 Core Nut .2113 .2674 .3299 .3834 .4459 .5024 .5649 .6823 .7977 Core Bolt Pitch Depth Effec

.2062 .03571 .02191 .2268 .2062 .04167 .02191 .2854 .2614 .04167 .02556 .3479 .3239 .05000 .02556 .4050 .3762 .05000 .03067 .4675 .4387 .05556 .03067 .5264 .4943 .05556 .03408 .5889 .5568 .06250 .03408 .7094 .6733 .07143 .03834 .8286 .7874 .08333 .04382 .9459

1.0000 .9098

1.1250 1.0348 .8978 .08333 .05112 1.0709 1.2500 1.1598 1.0228 .08333 .05112 1.1959 1.3750 1.2848 1.1478 .08333 .05112 1.3209 1.5000 1.4098 1.2728 .08333 .05112 1.4459

We also offer a full range of finishes including: Electro and Mechanical Plating, Wedgelocking, Tuflok®, Eslok®, Patchlocking, Stayblack, Zinc & Nickel, Geomet® and Delta® Branded performance finishes.

These dimensions are for use as guide purposes only

24

B.S.F. THREADS (55°)

Dia 3/16 7/32 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1" 1.1/8 1.1/4 1.3/8 1.1/2 1.5/8 1.3/4 2" 2.1/4 2.1/2 2.3/4 3" O. Dia .1875 .2188 .2500 .3125 .3750 .4375 .5000 .5625 .6250 .7500 .8750 Core .1475 .1730 .2008 .2543 .3110 .3663 .4200 .4825 .5336 .6432 .7586 Pitch .0312 .0357 .0385 .0454 .0500 .0555 .0625 .0625 .0714 .0833 .0909 .1000 .1111 Depth Radius .0200 .0229 .0246 .0291 .0320 .0356 .0400 .0400 .0457 .0534 .0582 .0640 .0711 .0711 .0800 .0800 .0800 .0915 .0915 .1067 .1067 .1067 .1280 .0046 .0049 .0053 .0062 .0069 .0076 .0086 .0086 .0098 .0114 .0125 .0137 Effec .1675 .1958 .2254 .2834 .3430 .4019 .4600 .5225 .5793 .6966 .8168 .9360 T.P.I. 32 28 26 22 20 18 16 16 14 12 11 10 9 9 8 8 8 7 7 6 6 6 5

1.0000 .8720 1.1250 .9828

.0153 1.0539 .0153 1.1789 .0172 1.2950 .0172 1.4200 .0172 1.5450 .0196 1.6585 .0196 1.9085 .0229 2.1433 .0229 2.3933 .0229 2.6433 .0275 2.8719

1.2500 1.1078 .1111 1.3750 1.2150 .1250 1.5000 1.3400 .1250 1.6250 1.4649 .1250 1.7500 1.5670 .1429 2.0000 1.8170 .1429 2.2500 2.0366 .1666 2.5000 2.2866 .1666 2.7500 2.5366 .1666 3.0000 2.7439 .2000

These dimensions are for use as guide purposes only

25

WHITWORTH THREADS (55°)

Dia 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1" 1.1/8 1.1/4 1.1/2 1.3/4 2" O. Dia .1250 .1875 .2500 .3125 .3750 .4375 .5000 .5625 .6250 .7500 .8750 Core .0930 .1341 .1860 .2414 .2950 .3460 .3933 .4558 .5086 .6219 .7327 Pitch .0250 .0417 .0500 .0556 .0625 .0714 .0833 .0833 .0909 .1000 .1111 .1250 .1429 Depth Radius .0160 .0267 .0320 .0356 .0400 .0457 .0534 .0534 0.582 .0640 .0711 .0800 .0915 .0915 .1067 .1281 .1423 .0034 .0057 .0069 .0076 .0086 .0098 .0114 .0114 .0125 .0137 .0153 .0172 Effec .1090 .1608 .2180 .2769 .3350 .3918 .4466 .5091 .5668 .6860 .8039 .9200 T.P.I. 40 24 20 18 16 14 12 12 11 10 9 8 7 7 6 5 4.1/2

1.0000 .8399 1.1250 .9420

.0196 1.0335 .0196 1.1585 .0229 1.3933 .0275 1.6219 .0305 1.8577

1.2500 1.0670 .1429 1.5000 1.2866 .1667 1.7500 1.4939 .2000 2.0000 1.7154 .2222

Our experienced staff can offer you Sales and Technical Knowledge which is unrivalled by any other manufacturer and we are more than pleased to extend that knowledge to help you answer those "need to know" questions.

These dimensions are for use as guide purposes only

26

BRITISH STANDARD PIPE THREADS

Dia 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1" 1.1/4 1.1/2 1.3/4 2" O. Dia .383 .518 .656 .825 .902 1.041 1.189 1.309 1.650 1.882 2.116 2.347 Core .337 .451 .589 .734 .811 .950 1.098 1.309 1.650 1.766 2.000 2.231 Pitch .0357 .0526 .0526 .0714 .0714 .0714 .0714 .0909 .0909 .0909 .0909 .0909 Depth Radius .0229 .0335 .0335 .0457 .0457 .0457 .0457 .0582 .0582 .0582 .0582 .0582 .0049 .0072 .0072 .0098 .0098 .0098 Effec .3601 .4845 .6225 .7793 .8563 .9953 T.P.I. 28 19 19 14 14 14 14 11 11 11 11 11

.0098 1.1433 .0125 1.2508 .0125 1.5918 .0125 1.8238 .0125 2.0578 .0125 2.2888

Brief example of materials we manufacture in include: Steel including EN1A, EN3B, EN8, EN16, EN19 EN24, B7, L7 B16 Hiten Speed. Stainless Steel including 303,304,316,320,420,431,B8,B8M,B8MX. Aluminium and Yellow Metals including Brass, Phosphor Bronze, Ali Bronze, Nickel Ali Bronze. Exotic Metals including 17/4-ph, Titanium, Hastelloy®, Inconel®, Incoloy®, Duplex and Super Duplex.

These dimensions are for use as guide purposes only

27

Hardness Conversions For Steel

Grade 14.9 14.9 14.9 14.9 14.9 14.9 14.9 14.9 12.9 12.9 12.9 12.9 10.9 10.9 10.9 10.9 10.9 10.9 10.9 8.8 8.8 8.8 8.8 8.8 8.8 8.8 8.8 5.8 5.8 5.8 5.8 Rockwell 53.5 52 51 49.5 48.5 47 45.5 45 43 42 40.5 39 38 36.5 35.5 34.5 33 32 31 30 29 27.5 26.5 25.5 24 23 22 20.5 20 19 18 HRC Brinell 534 514 495 477 461 444 429 415 401 388 375 363 352 341 331 321 311 302 293 285 277 269 262 255 248 241 235 229 223 217 212 HB Vickers 569 547 528 508 491 474 455 440 425 410 396 383 372 360 350 339 328 319 309 301 292 284 276 269 261 253 247 241 235 228 223 HV tonf / in2 kgf / mm2 Nmm2 120 117 114 105 101 98 95 92 88 85 82 80 77 75 73 71 68 66 64 63 61 59 58 56 55 53 51 50 49 48 46 * * * * 160 155 150 145 139 134 129 126 121 118 114 111 107 104 101 99 96 93 91 89 87 84 81 79 77 76 73 * * * * 1569 1520 1471 1422 1363 1314 1265 1236 1187 1157 1118 1089 1049 1020 990 971 941 912 892 873 853 824 794 775 755 745 716

These dimensions are for use as guide purposes only

28

mm.

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0

Conversion Table (Metric to Inch) inch mm. inch mm.

0.0039 0.0079 0.0118 0.0157 0.0197 0.0236 0.0276 0.0315 0.0354 0.0394 0.0591 0.0787 0.0984 0.1181 0.1378 0.1575 0.1772 0.1968 0.2165 0.2362 0.2559 0.2756 0.2953 0.315 0.3347 0.3543 0.374 0.3937 0.4134 0.4331 0.4528 0.4724 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 0.4921 0.5118 0.5315 0.5512 0.5709 0.5906 0.6103 0.6299 0.6496 0.6693 0.6890 0.7087 0.7284 0.7480 0.7677 0.7874 0.8071 0.8268 0.8465 0.8661 0.8858 0.9055 0.9252 0.9449 0.9646 0.9843 1.0040 1.0236 1.0433 1.0630 1.0827 1.1024 28.5 29.0 29.5 30.0 30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5 35.0 35.5 36.0 36.5 37.0 37.5 38.0 38.5 39.0 39.5 40.0 40.5 41.0 41.5 42.0 42.5 43.0 43.5 44.0

inch

1.1221 1.1417 1.1614 1.1811 1.2008 1.2205 1.2402 1.2599 1.2796 1.2992 1.3189 1.3386 1.3583 1.378 1.3977 1.4173 1.4370 1.4567 1.4764 1.4961 1.5158 1.5354 1.5551 1.5748 1.5945 1.6142 1.6339 1.6536 1.6733 1.6929 1.7126 1.7323

These dimensions are for use as guide purposes only

29

Conversion Table (Fraction - Inch - Metric) Fraction inch mm Fraction inch mm.

1/64 1/32 3/64 1/16 5/64 3/32 7/64 1/8 9/64 5/32 11/64 3/16 13/64 7/32 15/64 1/4 17/64 9/32 19/64 5/16 21/64 11/32 23/64 3/8 25/64 13/32 27/64 7/16 29/64 15/32 31/64 1/2 0.01563 0.03125 0.04688 0.06250 0.07813 0.09375 0.10938 0.12500 0.14063 0.15625 0.17188 0.18750 0.20313 0.21875 0.23438 0.25000 0.26563 0.28125 0.29688 0.31250 0.32813 0.34375 0.35938 0.37500 0.39063 0.40625 0.42188 0.43750 0.45313 0.46875 0.48438 0.50000 0.39690 0.79380 1.19060 1.58750 1.98440 2.38120 2.77810 3.17500 3.57190 3.96880 4.36560 4.76250 5.15940 5.55620 5.95310 6.35000 6.74690 7.14380 7.54060 7.93750 8.33440 8.73120 9.12810 9.52500 9.92190 10.3188 10.7156 11.1125 11.5094 11.9062 12.3031 12.7000 33/64 17/32 35/64 9/16 37/64 19/32 39/64 5/8 41/64 21/32 43/64 11/16 45/64 23/32 47/64 3/4 49/64 25/32 51/64 13/16 53/64 27/32 55/64 7/8 57/64 29/32 59/64 15/16 61/64 31/32 63/64 1 0.51563 0.53125 0.54688 0.56250 0.57813 0.59375 0.60938 0.62500 0.64063 0.65625 0.67188 0.68750 0.70313 0.71875 0.73438 0.75000 0.76563 0.78125 0.79688 0.81250 0.82813 0.84375 0.85938 0.87500 0.89063 0.90625 0.92188 0.93750 0.95313 0.96875 0.98438 1.00000 13.0969 13.4938 13.8906 14.2875 14.6844 15.0812 15.4781 15.8750 16.2719 16.6688 17.0656 17.4625 17.8594 18.2562 18.6531 19.0500 19.4469 19.8438 20.2406 20.6375 21.0344 21.4312 21.8281 22.2250 22.6219 23.0188 23.4156 23.8125 24.2094 24.6062 25.0031 25.4000

These dimensions are for use as guide purposes only

30

Performance Fasteners Ltd

Manufacturing fasteners that perform in industry

Unit 6A Interlux Business Park 204 Oldbury Road West Bromwich B70 9DE Phone: 0121 525 1137 Fax: 0121 525 5325 [email protected] www.Performancefastenersltd.co.uk "Manufacturing fasteners that perform in industry"

Registered to: ISO 9001:2008 Certificate Number: QM2658

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