| Dimensions in mm – source DIN 404 | |||||||||
| Publication date: 08/2006 – Supersedes DIN 404: 09/1986 | |||||||||
| d thread size | P | b | k nom | d1 max=nom | n nom | t min/max | w nom | d2 min=nom | |
| M 2 | 0.4 | 16 | 3 | 3.8 | 0.5 | 0.7 | 09 | 1.2 | 1.2 |
| M 2.5 | 0.45 | 18 | 3.5 | 4.5 | 0.6 | 0.8 | 1 | 1.2 | 1.2 |
| M 3 | 0.5 | 19 | 4 | 5.5 | 0.8 | 1 | 1.25 | 1.5 | 1.5 |
| M 4 | 0.7 | 22 | 5 | 7 | 1 | 1.4 | 1.7 | 2 | 2 |
| M 5 | 0.8 | 25 | 6.5 | 8.5 | 1.2 | 1.7 | 2 | 2.5 | 2.5 |
| M 6 | 1 | 28 | 8 | 10 | 1.6 | 2.2 | 2.6 | 3 | 3 |
| M 8 | 1.25 | 34 | 10 | 13 | 2 | 2.7 | 3.2 | 4 | 4 |
| M 10 | 1.5 | 40 | 12.5 | 16 | 2.5 | 3.5 | 4.1 | 5 | 5 |
| Dimensions in mm – source UNI 6111 | ||||||
| d thread size | P | k | d1 | n | t min | d2 |
| M 2 | 0.4 | 3 | 4 | 0.4 | 0.6 | 1.2 |
| M 2.2 | 0.4 | 3.2 | 4.5 | 0.5 | 0.7 | 1.2 |
| M 2.3 | 0.4 | 3.2 | 4.5 | 0.6 | 0.8 | 1.2 |
| M 2.5 | 0.45 | 3.6 | 5 | 0.6 | 0.7 | 1.5 |
| M 2.6 | 0.45 | 3.6 | 5 | 0.6 | 0.9 | 1.5 |
| M 3 | 0.5 | 4 | 5.5 | 0.8 | 0.9 | 1.5 |
| M 3.5 | 0.6 | 4.5 | 6 | 0.8 | 1.2 | 1.8 |
| M 4 | 0.7 | 5 | 7 | 1 | 1.2 | 2 |
| M 5 | 0.8 | 6.5 | 9 | 1.2 | 1.5 | 2.5 |
| M 6 | 1 | 8 | 10 | 1.6 | 1.8 | 3 |
