1.DIN 912/933/7991,ISO 7380 2.Gr 2,Gr5,Gr7,Gr5 ELI 3.Size: ... ,Gr4,Gr5(Ti-6AL-4V),Gr7,Gr9,Gr12, etc.StandardGB,DIN, IFI,UNC,UNC,JIS, BS,BSW ,ISODIN912,913,914,915 ... ,916,931,933,7991,7984,6921,ISO 7380,JIS,BS etc.SpecificationScrew: M2.5--M64*L6—300mm ...