M4 Black Stainless Steel Internal Serrated Lock Washers
Black A2 Stainless Steel
DIN 6798 J
| d | d1 | d2 | s | h |
| M3 | 3.38-3.20 | 6.00-5.70 | 0.4 | 1.2 |
| M4 | 4.48-4.30 | 8.00-7.64 | 0.5 | 1.5 |
| M5 | 5.46-5.30 | 10.00-9.64 | 0.6 | 1.8 |
| M6 | 6.62-6.40 | 11.00-10.57 | 0.7 | 2.1 |
| M8 | 8.62-8.40 | 15.00-14.57 | 0.8 | 2.4 |