... available. ASTM A325 High Strength Structural Bolts Dimension 3/4", 5"Long, with Heavy Hex Nuts A563 and Plain Washers F436 Specification 1 ... Type 15.Surface finishes: Zinc-plated(Black or Plain), Hot dip galvanizing, Dacromet,etc. 6.An inquiry shall include product name ... Project Achievments ASTM A325 High Strength Structural Bolts Dimension 3/4",5"Long, with Heavy Hex Nuts A563 and Plain Washers F436