... .2 4.Surface:Hot dipped Galv,Zinc yellow ,PTFE STUD BOLTS and U_BOLTS:1. Din 975, class 4.8, class ... ANSI B18.2.1, ANSI B18.2.6, DIN931 and DIN933.HEX NUTMaterial: ASTM A194 2H, ASTM A194 Gr. ... : ANSI B 18.2.2WASHER Flat washer and Spring WasherMaterial: Carbon Steel and Stainless Steel.Specification: ASTM F436, ANSI B ... Plating .Packing: Carton/pallet ,or as customers' requirements. Stud bolts & nuts