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DIN7980 spring washer
DIN 7980 
*All measurements in millimeters (mm)*
| d | used for | s | b min | d1 |
| 3.1 | M3 | 1 | 2 | 5.6 |
| 4.1 | M4 | 1.2 | 2.4 | 7 |
| 5.1 | M5 | 1.6 | 3.2 | 8.8 |
| 6.1 | M6 | 1.6 | 3.2 | 9.9 |
| 8.1 | M8 | 2 | 4 | 12.7 |
| 10.2 | M10 | 2.5 | 5 | 16 |
| 12.2 | M12 | 2.5 | 5 | 18 |
| 14.2 | M14 | 3 | 6 | 21.1 |
| 16.2 | M16 | 3.5 | 7 | 24.4 |
| 18.2 | M18 | 3.5 | 7 | 26.4 |
| 20.2 | M20 | 4.5 | 9 | 30.6 |
| 22.5 | M22 | 4.5 | 9 | 32.9 |
| 24.5 | M24 | 5 | 10 | 35.9 |
| 27 | M26 | 5 | 10 | 38.9 |
| 30 | M29 | 6 | 12 | 44.1 |
| 33 | M32 | 6 | 12 | 47.1 |
| 36 | M35 | 7 | 14 | 52.2 |
All information is strictly informative