M4 DIN 6798 Type V, Metric, Serrated Lock Washers, Internal-External Type "V", 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...