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- DIN 603/ANSI B18.5 Specifications
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Cup Head Bolts Specifications
- All measurements are in millimeters
DIN 603 Specifications
| D1 | D2 | K | V | F |
| M6 | 16.55 | 3.88 | 6.48 | 4.6 |
| M8 | 20.65 | 4.88 | 8.58 | 5.6 |
| M10 | 24.65 | 5.38 | 10.58 | 6.6 |
| M12 | 30.65 | 6.95 | 12.7 | 8.75 |
ANSI B18.5 Specifications
| D1 | D2 | K | V | F |
| 1/4 | 15.09 | 3.68 | 6.60 | 3.96 |
| 5/16 | 18.26 | 4.47 | 8.23 | 4.74 |
| 3/8 | 21.44 | 5.28 | 9.86 | 5.56 |
| 1/2 | 27.79 | 6.86 | 13.08 | 7.14 |
*Use this information as a guide only.