... , produce as your requirement is okStandardGB,GB/T,DIN,JIS,BSW,ANSI,ISO & non-standard productsSurfacePlain, ... Heat TreatmentTempering,Hardening,Spheroidizing,Stress Relieving.StandardISO,GB,DIN,JIS,ANSI,BSWManufacture ProcessHeading/washer assembly/Threading/ ... only offering good Set Screw products but also offering chipboard Screw, machine Screw , wood Screw, Self Tapping Screw. Our excellent supply ...