... copper, 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 it ... the assembly of simple revolving parts.Size list:Hex Socket Set Screws (DIN913-DIN916/ISO4026-4029/JISB1177/ASME ...