1.Size: M12 * 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 picture 1) Size: M12 * L 2) Standard:DIN9333) material designation: GR2 We also offer other titanium screw with different sizes: 1) Size: >M3 * L 2) Standard: DIN912, DIN933, DIN84, DIN85, DIN963, DIN7991, DIN6912, DIN931, ...