Shape and dimensions
Key: d – outer (nominal) thread diameter (of the bolt or nut); D – outer thread diameter of the nut (D = d); d1/D1 – minor diameter of the bolt/nut thread (d1 = D1); d2/D2 – pitch diameter of the bolt/nut thread (d2 = D2); p – pitch.
Dimension values
Note. The normal (coarse) pitch – the first pitch listed for each diameter in the original standard extract – is recommended, above all, for usual fastening joints.
| Nominal thread diameter d [mm] | Pitch [mm] | Nominal dimensions | ||
|---|---|---|---|---|
| D = d [mm] | D2 = d2 [mm] | D1 = d1 [mm] | ||
| 4 | 0.7 | 4 | 3.545 | 3.242 |
| 0.5 | 3.675 | 3.459 | ||
| 4.5 | 0.75 | 4.5 | 4.013 | 3.688 |
| 0.5 | 4.175 | 3.959 | ||
| 5 | 0.8 | 5 | 4.480 | 4.134 |
| 0.5 | 4.675 | 4.459 | ||
| 5.5 | 0.5 | 5.5 | 5.175 | 4.959 |
| 6 | 1 | 6 | 5.350 | 4.917 |
| 0.75 | 5.513 | 5.188 | ||
| 0.5 | 5.675 | 5.459 | ||
| 7 | 1 | 7 | 6.350 | 5.917 |
| 0.75 | 6.513 | 6.188 | ||
| 0.5 | 6.675 | 6.459 | ||
| 8 | 1.25 | 8 | 7.188 | 6.647 |
| 1 | 7.350 | 6.917 | ||
| 0.75 | 7.513 | 7.188 | ||
| 0.5 | 7.675 | 7.459 | ||
| 9 | 1.25 | 9 | 8.188 | 7.647 |
| 1 | 8.350 | 7.917 | ||
| 0.75 | 8.513 | 8.188 | ||
| 0.5 | 8.675 | 8.459 | ||
| 10 | 1.5 | 10 | 9.026 | 8.376 |
| 1.25 | 9.188 | 9.647 | ||
| 1 | 9.350 | 8.917 | ||
| 0.75 | 9.513 | 9.188 | ||
| 0.5 | 9.675 | 9.459 | ||
| 11 | 1.5 | 10 | 10.026 | 9.376 |
| 1 | 10.350 | 9.917 | ||
| 0.75 | 10.513 | 10.188 | ||
| 0.5 | 10.675 | 10.459 | ||
| 12 | 1.75 | 12 | 10.863 | 10.106 |
| 1.5 | 11.026 | 10.376 | ||
| 1.25 | 11.188 | 10.647 | ||
| 1 | 11.350 | 10.917 | ||
| 0.75 | 11.513 | 11.188 | ||
| 0.5 | 11.675 | 11.459 | ||
| 14 | 2 | 14 | 12.701 | 11.825 |
| 1.5 | 13.026 | 12.376 | ||
| 1.25 | 13.188 | 12.647 | ||
| 1 | 13.350 | 12.917 | ||
| 0.75 | 13.513 | 13.188 | ||
| 0.5 | 13.675 | 13.459 | ||
| 15 | 1.5 | 15 | 14.026 | 13.376 |
| 2 | 14.350 | 13.917 | ||
| 16 | 2 | 16 | 14.701 | 13.836 |
| 1.5 | 15.026 | 14.376 | ||
| 1 | 15.350 | 14.917 | ||
| 0.75 | 15.513 | 15.188 | ||
| 0.5 | 15.675 | 15.459 | ||
| 17 | 1.5 | 17 | 16.026 | 15.376 |
| 1 | 16.350 | 15.917 | ||
| 18 | 2.5 | 18 | 16.376 | 15.294 |
| 2 | 16.701 | 15.835 | ||
| 1.5 | 17.026 | 16.376 | ||
| 1 | 17.350 | 16.917 | ||
| 0.75 | 17.513 | 17.188 | ||
| 0.5 | 17.675 | 17.459 | ||
| 20 | 2.5 | 20 | 18.376 | 17.294 |
| 2 | 18.701 | 17.835 | ||
| 1.5 | 18.026 | 17.376 | ||
| 1 | 18.350 | 17.917 | ||
| 0.75 | 19.513 | 19.188 | ||
| 0.5 | 19.675 | 19.459 | ||
| 22 | 2.5 | 22 | 20.376 | 19.294 |
| 2 | 20.701 | 19.835 | ||
| 1.5 | 21.026 | 20.376 | ||
| 1 | 21.350 | 20.917 | ||
| 0.75 | 21.513 | 21.188 | ||
| 0.5 | 21.675 | 21.459 | ||
| 24 | 3 | 24 | 22.051 | 20.752 |
| 2 | 22.701 | 21.835 | ||
| 1.5 | 23.026 | 22.376 | ||
| 1 | 23.350 | 22.917 | ||
| 0.75 | 23.513 | 23.188 | ||
| 30 | 3.5 | 30 | 27.727 | 26.211 |
| 3 | 28.051 | 26.752 | ||
| 2 | 28.701 | 27.835 | ||
| 1.5 | 29.026 | 28.376 | ||
| 1 | 29.350 | 28.917 | ||
| 0.75 | 29.513 | 29.188 | ||
| 32 | 2 | 32 | 30.701 | 29.835 |
| 1.5 | 31.026 | 30.376 | ||
| 33 | 3.5 | 33 | 30.727 | 29.211 |
| 3 | 31.051 | 29.752 | ||
| 2 | 31.701 | 30.835 | ||
| 1.5 | 32.026 | 31.376 | ||
| 1 | 32.350 | 31.917 | ||
| 0.75 | 32.513 | 32.188 | ||
| 35 | 1.5 | 35 | 34.026 | 33.376 |
| 36 | 4 | 36 | 33.402 | 31.670 |
| 3 | 34.051 | 32.752 | ||
| 2 | 34.701 | 33.835 | ||
| 1.5 | 35.026 | 34.376 | ||
| 1 | 35.350 | 34.917 | ||
| 38 | 1.5 | 38 | 37.026 | 36.376 |
| 39 | 4 | 39 | 36.402 | 34.670 |
| 3 | 37.051 | 35.752 | ||
| 2 | 37.701 | 36.835 | ||
| 1.5 | 38.026 | 37.376 | ||
| 1 | 38.350 | 37.917 | ||
| 40 | 3 | 40 | 38.051 | 36.752 |
| 2 | 38.701 | 37.835 | ||
| 1.5 | 39.026 | 38.376 | ||
| 42 | 4.5 | 42 | 39.077 | 37.129 |
| 4 | 39.402 | 37.670 | ||
| 3 | 40.051 | 38.752 | ||
| 2 | 40.701 | 39.835 | ||
| 1.5 | 41.026 | 40.376 | ||
| 1 | 41.350 | 40.917 | ||