DIN 6319 C
DIN 6319, Type C , Spherical washers standard.
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DIN 6319 C, Spherical washers dimension as below:
| Size | d1 | d3 | h1 | h2 | r1 |
| M6 | 6.4 | 12 | 0.7 | 2.3 | 9 |
| M8 | 8.4 | 17 | 0.6 | 3.2 | 12 |
| M10 | 10.5 | 21 | 0.8 | 4 | 15 |
| M12 | 13 | 24 | 1.1 | 4.6 | 17 |
| M16 | 17 | 30 | 1.3 | 5.3 | 22 |
| M20 | 21 | 36 | — | 6.3 | 27 |
| M24 | 25 | 44 | — | 8.2 | 32 |
| M30 | 31 | 56 | — | 11.2 | 41 |
