... Bolts & Screws: Hexagon head bolts,T-head bolts,Cup head nid bolts,Flat countersunk bolts,Double end studs,Self tapping screw.2.Ti Nuts: Hexagon nut,Wing nuts ... ; GB97/DIN125,GB93/DIN127 Application Fields:Titanium and titanium alloy fasteners are widely used in aerospace,nuclear power,metallurgy,chemical,medicine ...