1.Titanium 2.High precision 3.For Rc Hobby Industrial 4.Delivery fast 5.OEM ... , Oxiding, Blasting, Painting, Anodizing, Heat treatment, AlodineTolerancehexagon socket screws: +0.0004/-0, +0/-0.0004 inchStandard DIN912,913,914,915,916,DIN84,ASME B18 ... ,please contact us to ask for catalogues and price list. High precision and lowest price Titanium Hexagon Head Socket Screws