... ~160mm nut:M3-M30 Washer:M3-M30 Application:motor,auto,bicycle,racingtitanium bolt for disc brake rotorStandard:GB,DIN,ASME,BSW ... ,JISGread:Gr1,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12,Gr23 Application: Bicycle,Motorcycles,car,bike, machine, industry,military,metallurgy,medicalAs the certifications ...