... * L 2.Standard: DIN933, DIN84, DIN85, DIN963, DIN7991, DIN6912, DIN931,etc. 3)titanium grade:GR1 GR2 GR5,etc. M12 titanium screw titanium boltproduct shown on ... , DIN933, DIN84, DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380, ISO7380 , etc. 3) material designation: GR1 GR2 GR5 etc A. mini titanium screw and titanium nuts ...