standard: ISO,GB,ANSI,BS packing: General export packing poly bag carton material: Carbon steel, Alloy steel, stainless coach screw bolt:M3-M22*length5mm~160mm nut:M3-M30 Washer:M3-M30 coach screwStandard:GB,DIN,ASME,BSW,UNC,JISGread:Gr1,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12,Gr23Application: Bicycle,Motorcycles,car,bike, machine, industry,military,metallurgy,medical machinery,survey,corrosion Our high-quality ...