... alloyFinishPlating, Oxiding, Blasting, Painting, Anodizing, Heat treatment, AlodineTolerancehexagon socket screws: +0.0004/-0, +0/-0.0004 inchStandard DIN912,913 ... can quote you a price immediately.OEM, ODM hexagon socket screws are provided per customers' application. You name ... ISO certified manufacturer – Freerun GroupStrict quality control for hexagon socket screws by IQC, IPQC, FQC, SPC, PCP, PPAP ...