Hex Nut 1.Materials:Carbon Steel 2.Diameter:M2~M64 3.Grade:4~8 4.Standard:DIN934 Hex NutHigh quality and Best price1.Materials:Carbon Steel2.Diameter:M2~M643.Grade:4~84.Standard:DIN9345.Packing:Bulk or Small Box,According to customer requirement6.Surface Treatment :Zinc,Black Phosphate,Grey,Nickel,Etc DIN934 Hex Nut