... ,Gr12, etc.4.Standard: GB,DIN, IFI,UNC,UNC,JIS, BS,BSW ,ISO5.Specification: Screw: M2.5--M64*L6—300mm (or ... ),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 (or as your ...