... 9, 12 2.Standard : ASTM, DIN, GB/T 3.Parts: bolt and nut 4.Woodencase Pure Titanium Bolt: 1. Material: Gr1, Gr2, ... Gr3, Gr4, Gr5, Gr7, Gr9, Gr122. Standard: ASTM F67, F136 DIN 933, 912 ... slot word screw, titanium cross slot screw.7. Parts: bolt and nut8. Intrinsic Quality: No organization segregation, no high ... parts of the cars,the bikes pure titanium bolt