DIN 137 (A) – 1987 Curved spring washers
DIN 137A 规格
所有测量值均以毫米（mm）为单位
| d1 | 用于螺钉 | d2 | s |
| 2.2 | M2 | 4.5 | 0.3 |
| 2.8 | M2.5 | 5.5 | 0.3 |
| 3.2 | M3 | 6 | 0.4 |
| 3.7 | M3.5 | 7 | 0.4 |
| 4.3 | M4 | 8 | 0.5 |
| 5.3 | M5 | 10 | 0.5 |
| 6.4 | M6 | 11 | 0.5 |
| 7.4 | M7 | 12 | 0.5 |
| 8.4 | M8 | 15 | 0.5 |
| 10.5 | M10 | 18 | 0.8 |
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