... , 302, 304, and 316 1.Standard of eccentric screw : DIN 933/931/912,DIN 960/961,IS0 4014/4017,ANSI/ASME B18.2 ... . G. ) etc.Heat TreatmentTempering,Hardening,Spheroidizing,Stress Relieving.StandardISO,GB,DIN,JIS,ANSI,BSWManufacture ProcessHeading/washer assembly/Threading/Secondary machine/heat ...