... . ASTM A325 High Strength Structural Bolts Dimension 3/4", 5"Long, with Heavy Hex Nuts A563 and Plain Washers F436 Specification 1 ... : Zinc-plated(Black or Plain), Hot dip galvanizing, Dacromet,etc. 6.An inquiry shall include product name, standard, size, property class ... can do as per international standard as customer's request with high quality and best price. Welcome your inquiries! Factory Test ...