... quality motorcycle bolt:1. Grade: GR1,Grade2,Grade5(Ti6AI4V)2. Standard: GB, DIN, IFI, UNC, JIS, BS, BSW, ISO3. Production Description ... .4.Surface Treatment: Polishing, Anodizing, Black oxide 5.Material: Titanium alloy and pure titanium6. Applications: Chemical industry, Medical field, Aeros pace or ... ,please feel free to contact us.We will meet the standard of yours.