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DIN604 Flat Countersunk Nib Bolt
DIN 604 
*All measurements in millimeters (mm)*
| d | d1 | k | a | b |
| M8 | 16 | 5 | 90?/b> | 22 |
| M10 | 19 | 5.5 | 90?/b> | 26 |
| M12 | 24 | 7 | 90?/b> | 30 |
| M16 | 32 | 9 | 90?/b> | 38 |
| M20 | 32 | 11.5 | 60?/b> | 46 |
| M24 | 38.8 | 13 | 60?/b> | 54 |
All information is strictly informative