1.Name:Flat countersunk head screws 2.Size: M3X10----M16X150 3.Grade:Gr.8.8,10. ... ,#1022,#1035,#1045 Specification of our screw: 1.NameFlat countersunk head screws2.StandardDIN, IFI, ISO, JIS, AS,BS, EN, SAE,ASTM3 ... of nuts we can offer?1.NameHex head bolt,Square head bolt,Round head bolt,Hex socket bolt,Carriage bolt, Track bolt,Flang bolt ...