DIN 931

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Equivalent Standards

DIN 931 Hex Bolts

DIN 931 Hex Bolt Dimensions

Size Width Across Flat (s) Head Height (k) Thread Length
DIN 931 ISO 4014 DIN 931 ISO 4014 DIN 931 Length (in MM) ISO 4014 Length (in MM)
Min Max Min Max Min Max Min Max ≥125 >125≥200 ≥200 ≥125 >125≥200 ≥200
M2 3.82 4.00 3.82 4.00 1.28 1.52 1.275 1.525 10 - - 10 - -
M3 5.32 5.50 5.32 5.50 1.88 2.12 1.875 2.125 12 - - 12 - -
M4 6.78 7.00 6.78 7.00 2.68 2.92 2.675 2.925 14 - - 14 - -
M5 7.78 8.00 7.78 8.00 3.35 3.65 3.35 3.65 16 22 - 16 - -
M6 9.78 10.00 9.78 10.00 3.85 4.15 3.85 4.15 18 24 - 18 - -
M8 12.73 13.00 12.73 13.00 5.15 5.45 5.15 5.45 22 28 41 22 - -
M10 16.73 17.00 15.73 16.00 6.22 6.58 6.22 6.58 26 32 45 26 - -
M12 18.67 19.00 17.73 18.00 7.32 7.68 7.32 7.68 30 36 49 30 - -
M14 21.67 22.00 20.67 21.00 8.62 8.98 8.62 8.98 34 40 53 34 40 -
M16 23.67 24.00 23.67 24.00 9.82 10.2 9.82 10.18 38 44 57 38 44 -
M18 26.67 27.00 26.67 27.00 11.28 11.7 11.285 11.715 42 48 61 42 48 -
M20 29.67 30.00 29.67 30.00 12.28 12.7 12.285 12.715 46 52 65 46 52 -
M22 31.61 32.00 33.38 34.00 13.78 14.2 13.785 14.215 50 56 69 50 56 69
M24 35.38 36.00 35.38 36.00 14.78 15.2 14.785 15.215 54 60 73 54 60 73
M27 40.00 41.00 40.00 41.00 16.65 17.4 16.65 17.35 60 66 79 60 66 79
M30 45.00 46.00 45.00 46.00 18.28 19.1 18.28 19.12 66 72 85 66 72 85
M33 49.00 50.00 49.00 50.00 20.58 21.4 20.58 21.42 72 78 91 - 78 91
M36 53.80 55.00 53.80 55.00 22.08 22.9 22.08 22.92 78 84 97 - 84 97
M39 58.80 60.00 58.80 60.00 24.58 25.4 24.58 25.42 84 90 103 - 90 103
M42 63.10 65.00 63.10 65.00 25.58 26.4 25.58 26.42 90 96 109 - 96 109
M45 68.10 70.00 68.10 70.00 27.58 28.4 27.58 28.42 96 102 115 - 102 115
M48 73.10 75.00 73.10 75.00 29.58 30.4 29.58 30.42 102 108 121 - 108 121
M52 78.10 80.00 78.10 80.00 32.5 33.5 32.5 33.5 - 116 129 - 116 129
M56 82.80 85.00 82.80 85.00 34.5 35.5 34.5 35.5 - 124 137 - - 137
M60 87.80 90.00 87.80 90.00 37.5 38.5 37.5 38.5 - 132 145 - - 145
M64 92.80 95.00 92.80 95.00 39.5 40.5 39.5 40.5 - 140 153 - - 153
M72 102.80 105.00 -- -- 44.5 45.5 -- -- - 156 169 - - -

DIN 931 Hex Bolts Weights

Diameter M4 M5 M6 M7 M8 M10 M12 M14 M16 M18 M20 M22 M24 M30 M36 M48
Length
25 3.12 4.86
30 3.61 5.64 8.06 12.7
35 4.04 6.42 9.13 13.6 18.2
40 4.53 7.20 10.2 15.1 20.3 35.0
45 7.98 11.3 16.6 22.2 38.0 53.6
50 8.76 12.3 18.1 24.2 41.1 58.1 82.0
55 13.4 19.5 25.8 43.8 62.6 88.1 115
60 14.4 21.0 27.8 46.9 67.0 94.1 123
65 22.5 29.8 50.0 70.3 98.8 131 171 219
70 24.0 31.8 53.1 74.7 105.0 139 181 231 281
75 33.7 56.2 79.1 111.0 147 191 243 296
80 35.7 59.3 83.6 117.0 155 200 255 311 392
85 62.4 88.1 123.0 163 210 267 326 410
90 65.5 92.4 127.0 171 220 279 341 428 712
95 68.6 96.8 133.0 179 230 291 356 446 739
100 71.7 101.0 139.0 186 240 303 370 464 767
110 109.0 151.0 202 260 327 400 500 823 1240
120 118.0 164.0 218 280 351 430 535 880 1320
130 174.0 230 296 374 450 560 920 1390
140 185.0 246 316 398 480 595 975 1470 2860
150 262 336 422 510 630 1030 1550 3010
160 278 356 446 540 665 1085 1630 3160
170 376 470 570 700 1140 1710 3300
180 396 494 600 735 1200 1790 3440
190 519 630 770 1250 1870 3580
200 544 660 805 1310 1950 3720
220 720 870 1420 2110 4010
240 935 1530 2270 4290
260 1640 2430 4570
280 1750 2590 4850
300 1860 2750 5130
320 5410
340 5690

Weights are in kilograms per 1,000 pieces unless otherwise specified. All weights are approximations and strictly informative.