... 4.Standard:DIN912,DIN9 best price gr2 M3 titanium allen screw for industrypure titanium and alloy titanium screw grade:Gr1,Gr2,Gr3,Gr4,Gr5(Ti ... Standard:GB,DIN, IFI,UNC,UNC,JIS Item NameTitanium FastenerMaterialPure Titanium and Alloy TitaniumGradeGr1,Gr2,Gr3,Gr4,Gr5(Ti-6AL-4V ...