all thread rod 1.Material:mild steel 2.Size:M2-M68 3.Length:25- ... 3.Surface:zinc plated ,heated,Plain, HDG, Black Oxide all thread rod1.Model Number: DIN9752.Grade:4.8,5.6,6 ... ), Galvanized, Plain, HDG, Black Oxide7.standard:DIN,BS, ANSI all thread rod