... , M33 and up to be made by hot. Hex nuts: sizesM5 and upfeatureslow carton,high tensile,stailessstandardDIN,ANSI,BSW,AS,JS,ISO,ETC ... -M64low carton, high tensile,stainlessDIN.ANSI,BSW,AS,JS,ISO,ETC.bright,zinc plated,hot-dip galvanized,mechanical plated ,nickel plated,black 4.8,5 ...