din 7985
*all measurements in millimeters (mm)*
| d | m approx | r1 approx | a max | v approx | k | d1 max | cross recess no. |
| m3 | 3.1 | 6 | 1 | 1.6 | 2.4 | 6 | h1 |
| m4 | 4.6 | 8 | 1.4 | 2 | 3.1 | 8 | h2 |
| m5 | 5.3 | 10 | 1.6 | 2.5 | 3.8 | 10 | h2 |
| m6 | 6.8 | 12 | 2 | 3 | 4.6 | 12 | h3 |
| m8 | 9 | 16 | 2.5 | 3.7 | 6 | 16 | h4 |
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