The serrated lock washer is fitted on the bolt with the nut, which can play the role of locking and preventing loosening.
| Nominal size | Clearance hole diameter,d1 | Outside diameter,d2 | Thickness,h | ||||
| min.=nominal size | max. | min. | max.= nominal size | Nominal size | min. | max. | |
| M12 | 14 | 14.7 | 56.1 | 58 | 6 | 5 | 7 |
| M16 | 18 | 18.7 | 66.1 | 68 | 6 | 5 | 7 |
| M20 | 22 | 22.84 | 78.1 | 80 | 8 | 6.8 | 9.2 |
| M22 | 25 | 25.84 | 89.8 | 92 | 8 | 6.8 | 9.2 |
| M24 | 27 | 27.84 | 102.8 | 105 | 8 | 6.8 | 9.2 |
Specification:
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