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DIN 603-大半圓頭方頸螺栓 標準查詢
DIN 603 
*All measurements in millimeters (mm)*
| d | d1 max | k max | f max | b to 125 | b to 200 | b over 200 |
| M5 | 13.55 | 3.3 | 4.1 | 16 | - | - |
| M6 | 16.55 | 3.88 | 4.6 | 18 | 24 | - |
| M8 | 20.65 | 4.88 | 5.6 | 22 | 28 | - |
| M10 | 24.65 | 5.38 | 6.6 | 26 | 32 | 45 |
| M12 | 30.65 | 6.95 | 8.75 | 30 | 36 | 49 |
| M16 | 38.8 | 8.95 | 12.9 | 38 | 44 | 57 |
| M20 | 46.8 | 11.05 | 15.9 | - | - | 46 |
All information is strictly informative