Jul 2025
Nut Weight Chart
NUT WEIGHT CHART
Weights are in Kilograms per 100 pieces unless otherwise specified. All weights are approximations and strictly informative..
| Size |
Old Spec IS 1363/67 |
New Spec IS 1363/92 |
Height=Dia Nuts |
Hex Lock Nuts IS 1364-84 |
HSS Nuts IS: 6623 |
Castle Nuts IS 2232-67 |
Nylock Nuts DIN 985 |
Size |
Hex Nuts BSW / BSF |
Hex Lock Nuts BSW / BSF |
Square Nuts - BSW |
ASTM A-194 UNC Heavy Hex Nuts |
| M2 | 0.011 | | | | | | | 1/8" | 0.041 | | | |
| M3 | 0.033 | | | | | | 0.05 | 5/32" | 0.053 | | | |
| M4 | 0.067 | | | | 0.112 | | 0.10 | 3/16" | 0.133 | | | |
| M5 | 0.111 | | 0.08 | | 0.23 | | 0.14 | 1/4" | 0.323 | 0.19 | 0.34 | |
| M6 | 0.232 | | 0.12 | | 0.316 | | 0.24 | 5/16" | 0.51 | 0.34 | 0.654 | 0.758 |
| M7 | 0.294 | | | | 0.396 | | 0.30 | 3/8" | 0.817 | 0.51 | 0.966 | 1.37 |
| M8 | 0.482 | | 0.300 | | 0.735 | | 0.51 | 7/16" | 1.389 | 0.93 | 1.683 | 2.0 |
| M10 | 1.020 | 0.909 | 1.282 | 0.67 | | 1.58 | 1.06 | 1/2" | 2.222 | 1.43 | 2.677 | 2.959 |
| M12 | 1.590 | 1.389 | 1.942 | 1.09 | | 2.00 | 1.72 | 5/8" | 4.348 | 2.70 | 5.04 | 5.263 |
| M14 | 2.400 | | 3.049 | 1.68 | | 2.70 | 2.60 | 3/4" | 7.184 | 4.80 | 8.818 | 8.621 |
| M16 | 3.081 | 3.333 | 3.906 | 1.800 | 6.04 | 3.89 | 3.40 | 7/8" | 8.621 | 5.60 | 10.917 | 12.658 |
| M18 | 4.448 |
| 5.814 | 2.69 |
| 5.75 | 4.50 | 1" | 12.987 | 8.50 | 15.432 | 17.986 |
| M20 | 6.031 | 6.667 | 7.519 | 3.30 | 11.53 | 7.52 | 6.50 | 1.1/8" | 18.182 | 11.8 | 23.364 | 26.316 |
| M22 | 7.143 | 8.929 | 9.091 | 3.89 | 14.28 | 9.30 | 7.50 | 1.1/4" | 26.596 | 17.2 | 33.333 | 34.247 |
| M24 | 10.309 | 12.5 | 12.821 | 5.10 | 19.77 | 13.1 | 10.0 | 1.3/8" | 37.879 | 23.0 |
| 44.248 |
| M27 | 15.432 |
| 18.657 | 8.15 | 28.23 | 19.2 | 16.2 | 1.1/2" | 45.455 | 28.0 |
| 60.241 |
| M30 | 21.645 |
| 26.596 | 10.4 | 36.5 | 26.4 | 21.2 | 1.5/8" | 71.429 |
|
| 73.529 |
| M33 | 27.174 |
| 34.483 | 14.3 |
| 33.33 | 31.7 | 1.3/4" | 71.429 | 46.0 |
| 90.909 |
| M36 | 37.037 |
| 43.86 | 17.6 | 28.18 | 44.7 | 41.5 | 2" | 81.967 | 54.0 |
| 135.135 |
| M39 | 47.619 |
| 57.471 | 24.0 |
| 58.4 | 49.2 | 2.1/4" | 111.111 |
|
| 185.185 |
| M42 | 57.471 |
| 73.529 | 27.5 |
| 71.0 | 62.8 | 2.12" | 172.414 |
|
| 238.095 |
| M45 | 72.464 |
| 92.593 | 37.0 |
| 86.0 | 77.1 | 2.3/4" | 263.158 |
|
| 333.333 |
| M48 | 92.593 |
| 113.636 | 42.8 |
| 106 | 99.8 | 3" | 333.333 |
|
| 454.545 |
| M52 | 108.696 |
| 138.889 | 52.0 |
| 130 |
| 0BA | 0.27 |
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| M56 | 131.579 |
| 166.667 |
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| 2BA | 0.126 |
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| M60 | 161.29 |
| 192.308 |
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| M64 | 185.185 |
| 2227.273 |
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| M72 | 250 |
| 312.5 |
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| M80 | 333.333 |
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| M90 | 454.545 |
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| M100 | 625 |
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