... bolts and nuts 1.Titanium screw/nut/bolt 2.Material is Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9 3.Standard is DIN ... ,GB Pure titanium bolts and nutsTitanium screw/nut/boltMaterial is Gr1,Gr2 ... ,Gr3,Gr4,Gr5,Gr7,Gr9Standard is DIN,GBA . different inches and ...