... 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 ... please contact us to ask for catalogues and price list. High precision and lowest price Titanium Hexagon Head Socket Screws