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DIN251 hex flange bolt
DIN 251 
*All measurements in millimeters (mm)*
| d | s | k max. | d1 max. |
| M5 | 4 | 5 | 11 |
| M6 | 5 | 6 | 13.5 |
| M8 | 6 | 8 | 17 |
| M10 | 8 | 10 | 19.5 |
| M12 | 10 | 12 | 22.5 |
All information is strictly informative