... bolts:DIN912, DIN931, DIN933, DIN985, DIN125, DIN127, DIN9021, DIN6926 Titanium nuts and bolts :Titanium materials is now becoming used in a ... it’s excellent corrosion resistance.1.Standard : DIN912, DIN931, DIN933, DIN985, DIN125, DIN127, DIN9021, DIN69262.Material :Gr1,Gr2,Gr5 3.Screw ... low temperature , nonmagnetic , low thermal conductivity , low elasticity modulus . titanium nuts and bolts