din 7989
*all measurements in millimeters (mm)*
| d | used for | d1 | s |
| 11 | m10 | 21 | 8 |
| 14 | m12 | 24 | 8 |
| 18 | m16 | 30 | 8 |
| 22 | m20 | 37 | 8 |
| 26 | m24 | 44 | 8 |
| 30 | m27 | 50 | 8 |
| 33 | m30 | 56 | 8 |
all information is strictly informative
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