(1000 pcs) M12, DIN 6798 Type V, Metric, Serrated Lock Washers, Countersunk External Tooth, A2 Stainless Steel
Serrated washers are made with small sharp serrations that, when compressed, prevent loosening.
Effective as a lock washer when used with harder materials.
A2 stainless steel is functionally equivalent to 304 grade, also known as 18-8 stainless steel.
Stainless steel significantly improves resistance to tarnishing or corrosion.