... make 3. size :M3 -M24 Specifications:titanium bolt nut screw fastener bolt:M3-M22*length5mm~160mm nut:M3-M30 Washer:M3 ... -M30 Application:motor,auto,bicycle,racingtitanium bolt for disc brake rotorStandard:GB,DIN,ASME,BSW,UNC, ... ,Gr5,Gr7,Gr9,Gr12,Gr23 Application: Bicycle,Motorcycles,car,bike, machine, industry,military,metallurgy,medicalAs the certifications about , ISO 90012000 , ...