... .2.2 4.Surface:Hot dipped Galv,Zinc yellow ,PTFE STUD BOLTS and U_BOLTS:1. Din 975, class 4.8, class ... ,B8,B8M.Specification: ANSI B18.2.1, ANSI B18.2.6, DIN931 and DIN933.HEX NUTMaterial: ASTM A194 2H, ASTM A194 ... . Black ,PTFE,White or Blueness Zinc (Cr.3 or Cr.6), Dacromet, Hot Dip Galv, Nickel Plating .Packing: Carton/pallet ,or ...