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中山DIN 444-活节螺栓 标准查询
DIN 444 
*All measurements in millimeters (mm)*
| d | d1 | d2 | b to 125 | b to 200 |
| M5 | 12 | 5 | 16 | |
| M6 | 14 | 6 | 18 | |
| M8 | 18 | 8 | 22 | 28 |
| M10 | 20 | 10 | 26 | 32 |
| M12 | 25 | 12 | 30 | 36 |
| M16 | 32 | 16 | 38 | 44 |
| M20 | 40 | 18 | 46 | 52 |