high strength washer Features: 1) Specification: M1.5 - M110 2) Materials: steel, stainless steel, copper 3) Standards: A high strength washerFeatures: 1) Specification: M1.5 - M110 2) Materials: steel, stainless steel, copper 3) Standards: ANSI / ASME, BS, JIS, ISO, DIN(DIN125A, DIN436, DIN9021,DIN126)