Karaniwang DIN, ASTM/ANSI JIS EN ISO, AS, GBMarka ng Bakal: 4/6/10/12 SAE: Gr.2, 5, 8;Finishing Zinc(Dilaw, Puti, Asul, Itim), Hop Dip Galvanized(HDG), Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated
Hex nut
Materyal: carbon steel, hindi kinakalawang na asero