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DIN EN ISO 4762 Standard Dimensions for Hexagon socket head cap screws

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Technical History and International Equivalents of DIN EN ISO 4762

Equivalent standards: UNI EN ISO 4762 ISO 4762 BS EN ISO 4762

This international standard (DIN EN ISO 4762) specifies the characteristics of socket head cap screws with thread sizes from M1.6 up to M64 enclosed, of product grade A.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN EN ISO 4762
Publication date: 06 - 2004 Supersedes DIN EN ISO 4762: 02 - 1998
d thread size P dk max plain dk max knurled dk min k max k min s nom

t min

 w min b
M 1.6 0.35 3 3.14 2.86 1.6 1.46 1.5 0.7 0.55 15
M 2 0.4 3.8 3.98 3.62 2 1.86 1.5 1 0.55 16
M 2.5 0.45 4.5 4.68 4.32 2.5 2.66 2 1.1 0.85 17
M 3 0.5 5.5 5.68 5.32 3 2.86 2.5 1.3 1.15 18
M 4 0.7 7 7.22 6.78 4 3.82 3 2 1.4 20
M 5 0.8 8.5 8.72 8.28 5 4.82 4 2.5 1.9 22
M 6 1 10 10.22 9.78 6 5.7 5 3 2.3 24
M 8 1.25 13 13.27 12.73 8 7.64 6 4 3.3 28
M 10 1.5 16 16.27 15.73 10 9.64 8 5 4 32
M 12 1.75 18 18.27 17.73 12 11.57 10 6 4.8 36
M 14 2 21 21.33 20.67 14 13.57 12 7 5.8 40
M 16 2 24 24.33 23.67 16 15.57 14 8 6.8 44
M 20 2.5 30 30.33 29.67 20 19.48 17 10 8.6 52
M 24 3 36 36.39 35.61 24 23.48 19 12 10.4 60
M 30 3.5 45 45.39 44.61 30 29.48 22 15.5 13.1 72
M 36 4 54 54.46 53.54 36 35.38 27 19 15.3 84
M 42 4.5 63 63.46 62.54 42 41.38 32 24 16.3 96
M 48 5 72 72.46 71.54 48 47.38 36 28 17.5 108
M 56 5.5 84 84.54 83.46 56 55.26 41 34 19 124
M 64 6 96 96.54 95.46 64 63.26 46 38 22 140

Din 4762 2004 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial items
d thread size M1.6
M2
M2.5
M3
M4
M5
M6

M8
M10
 M 12 M 14 M 16
nominal length l
2.5 0.085
3 0.09 0.155
4 0.1 0.175 0.345
5 0.11 0.195 0.375 0.67
6 0.12 0.215 0.405 0.71 1.5
8 0.14 0.255 0.465 0.8 1.65 2.45
10 0.16 0.295 0.525 0.88 1.8 2.7 4.7
12 0.18 0.355 0.585 0.96 1.95 2.95 5.07 10.9
16 0.22 0.415 0.705 1.16 2.25 3.45 5.75 12.1 20.9
18 0.47 0.77 1.26 2.45 3.73 6.15 12.8 21.9
20 0.495 0.825 1.36 2.65 4.01 6.53 13.4 22.9 32.1
25 0.975 1.61 3.15 4.78 7.59 15 25.4 35.7 48 71.3
30 1.86 3.65 5.55 8.3 16.9 27.9 39.3 53 77.8
35 4.15 6.32 9.91 18.9 30.4 42.9 58 84.4
40 4.65 7.09 11 20.9 32.9 46.5 63 91
45 7.86 12.1 22.9 36.1 50.1 68 97.6
50 8.63 13.2 24.9 39.3 54.5 73 106
55 14.3 26.9 42.5 58.9 78 114
60 15.4 28.9 45.7 63.4 84 122
65 31 48.9 67.8 90 130
70 33 52.1 71.3 96 138
75 35 55.3 75.75 102 146
80 37 58.5 80.2 108 154
90 64.9 89.1 120 170
100 71.2 98 132 186
110 107 144 202
120 116 156 218
130 168 234
140 180 250
150 266
160 282

Din 4762 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths
d thread size M20

M24

 M30 M36 M42 M48 M56 M64
nominal length l
20
25
30 128
35 139
40 150 270
45 161 285 500
50 172 300 527
55 183 316 554 870
60 194 330 581 910 1370
65 205 345 608 950 1420
70 216 363 635 990 1470 2040
80 241 399 690 1070 1580 2180 3340
90 266 435 745 1150 1680 2320 3530 5220
100 291 471 800 1230 1790 2460 3720 5470
110 316 507 855 1310 1890 2600 3920 5730
120 341 543 910 1390 2000 2740 4110 5980
130 366 579 965 1470 2100 2880 4300 6230
140 391 615 1020 1550 2210 3020 4490 6490
150 416 651 1080 1630 2320 3160 4680 6740
160 441 687 1130 1710 2420 3300 4880 6900
170 466 723 889 1790 2529 3445 5075 7075
180 491 759 1240 1870 2640 3590 5270 7250
190 516 795 977 1950 2750 3730 5460 7500
200 541 831 1350 2030 2860 3870 5650 7750
220 903 1460 2190 3080 4150 6040 8250
240 975 1570 2250 3300 4430 6420 8750
260 1680 2410 3520 4710 6810 9260
280 1790 2570 3740 4990 7200 9760
300 1900 2730 3960 5270 7580 10300

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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