M2 (ID:2.2mm) DIN 6798 Type A, Metric, Serrated Lock Washers, External Type "A", A4 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.A4 stainless steel is functionally equivalent to 316 grade and is also known as "marine grade"...