... ,Washer size:M3-M30Standard:GB,DIN,ASME,BSW,UNC,JISGread:Gr1,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12,Gr23Application: Bicycle,Motorcycles,car,bike, machine, industry,military,metallurgy,medical ... Example System (CCECS) of China Internet SpecificationM3--M22Xlength5—160mmGradeGr1,Gr2,Gr3,Gr4,Gr5(Ti-6AL-4V),Gr7,Gr9,Gr12,Gr23Thread typeA:Triangle thread: (60 degrees): Combination / lockB ...