hex wood screw MATERIAL:CARBON STEEL, STAINLESS STEEL GRADE:4.6- ... Hex wood Screw: DIN , ANSI/ASME, BS, GB, JS, Non-standard.2) Material of Hex wood Screw: Carbon steel, stainless ... steel3) Grade of Hex wood Screw: From grade4.6 to 12 ... produce according to your requirement6) Coating of Hex wood Screw: Plain, black, zinc, HDG, nickel, phosphate black ...