Internal-toothed serrated lock washer biting into fastener heads and mating surfaces for positive locking.
Metric: M4–M24
| Standard | DIN / IS / AISI / ISO |
| Material | SS304 | SS316 | SS202 | 8.8 | 4.6 | Spring Steel |
| Packaging | Carton / Pallet, custom on request |
| Standard | DIN 6798J / DIN 6797J / IS |
| Material Grade | SS304 | SS316 | SS202 | Spring Steel |
| Tooth Profile | Internal Tooth |
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