Brand:TGR, XDM, TD Brief: Surface:HDG, plain, black, galvanized, yellow zinc, nickel plated,dacromet, etc Material:stainless steel304,316,316L,317,317L,carbon steel,etc Size:3-12,Custom MOQ:10000
washers feature external teeth angled at 82° for use with flat and oval head screws in countersunk holes. The teeth lock into the screw head to prevent loosening. Zinc plating, retards the corrosion rate in a normal atmosphere.