... 4. Standard:DIN/ANSI/JIS/BS Stainless Steel Hex NutZinc Plated Carbon Steel Hex Nuts NameNut and boltStandardDIN933,DIN934,DIN985,DIN315,DIN1587, ISO,JIS& ANSI,GB ... ), Alloy steel, stainless steel( SS304 A2,SS316 A4 etc), Brass or according require3. Grade of Galvanized hex nut:4. Metric standard: Grade 4.8, Grade6.8, Grade8.8 ...