... , DIN 7991, all of head type we make 3. size :M3 -M24 Specifications:titanium bolt nut screw fastener bolt:M3-M22*length5mm~160mm ... :M3-M30 Washer:M3-M30 Application:motor,auto,bicycle,racingtitanium bolt for disc brake rotorStandard:GB,DIN,ASME,BSW,UNC,JISGread ...