... : >M3 * L Standard: DIN912, DIN933, DIN84, DIN85, DIN963, DIN7991, DIN912, DIN931,etc. titanium screw titanium bolt1) Size: >M3 * L 2) Standard ... : DIN912, DIN933, DIN84, DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380, ISO7380 , etc. 3) material designation: GR1 GR2 GR5 etc ...