split washer(spring washer ,washers)

featurue

1.Specification: M2,M3,M4,M5,M6,M7,M8

2.Surface finish:zinc plated, HDG, black,plain

3.materials: made of carbon steel, alloy and stainless steel, aluminum, brass, and  

other special materials.

4.Hardness grade: 8.8s,10.9s ,12.9s