... -8 Stainless Steel Set Screw, Metric, None Head, Internal Hex DriveA: Features Material:stainless steel,carbon steel Surface ... frequently-used size, produce as your requirement is okStandardGB,GB/T,DIN,JIS,BSW,ANSI,ISO & non-standard ... plated etc.Heat TreatmentTempering,Hardening,Spheroidizing,Stress Relieving.StandardISO,GB,DIN,JIS,ANSI,BSWManufacture ProcessHeading/washer assembly/Threading/ ...