Metric Split Lock washers. These are DIN 127B washers that place tension against a nut after tightening, to help prevent the nut from loosening.
Metric Split Lock Washers - Stainless Steel DIN 127B 18-8 / A2
Sale priceFrom $0.63
Metric Steel Split Lock Washers with Black Ox DIN 127B
Sale priceFrom $0.61
Marine Grade Stainless Steel Split Lock Washers, A4 (316) - DIN 127B
Sale priceFrom $0.65