... black, nickel, phosphate black hex nuts1) Standard of hex nuts: DIN934/439, ANSI/ASME, BS, GB, JIS, Non ... Carbon steel, stainless steel 3) Grade of the hex nuts: From grade 4 to 12, ANSI: grade2--grade10 ... according to your requirement 6) Coating of the hex nuts: Plain, black, zinc, HDG, nickel, phosphate black ... .7) Packing of the hex nuts: Small box with plastic bag, 25kgs bag or ...