... .Gr5&2 material4.titanium fastenerGR2,GR5 Titanium screw,titanium bolt and nuts,washers, From M1 to M24*LMaterial: GR2, GR5, GR7, GR9 ... , DIN931, ISO7380, GB, JIS etc.A. mini titanium screw / bolt and nuts: DIN 912, DIN963, DIN7991, ISO7380 etc.Spec (mm):M1 ... ; M4Length: As per customers required length and DIN or ISO standardB. Usual titanium screws/bolt and nuts: M4 to M42 or bigger ...