Serrated lock washer DIN6798 Type A, J, V SIZE: M1.7-M30 Material: Stainless steel, Spring steel, 65MN, ... stamping parts, We supply all kinds of standard lock washers and non-standard stampings. Standard lock: DIN6798, DIN6797, DIN6796, DIN9250, NFE25 ... are interested in our products, please feel free contact me and know more detais Serrated Lock Washer (DIN6798A&J&V)