Small Stainless steel Hex nuts 1,Products DetailesMaterial1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS4202,Steel:C45(K1045), C46(K1046),C203.Brass:C36000 ( C26800), C37700 ( HPb59 ... TreatmentTempering,Hardening,Spheroidizing,Stress Relieving.StandardISO,GB,DIN,JIS,ANSI,BSWManufacture ProcessHeading/washer assembly/Threading/Secondary machine/heat treatment/plating/Anti-slipping ...