DIN912 Titanium Bolts 1. Made of Titanium Gr.1, Gr.2, Gr.5, Gr.7 2. ISO9001: 2000SGS DIN912 Titanium BoltsMaterial: GR1 GR2 GR3 GR4 GR5 GR7 GR9 GR12 GR23Sizes: M1-M30XCustom lengthStrength class: 8.8/10.9/12.9Standard: DIN912/933/7991/7984/6921,ISO 7380,JIS,BS etcAplications: Racing industry like racing motorcycles and cars,racing bicycles,sailing boat and medical industry etcISO9001: 2000SGS