... steel 316,301,401, carbon steel 2.Standard: DIN, ANSI 3. Size:ST2.2-6.3 Standard screws:Materials: stainless steel316,carbon steelSize: ... ST2.2-ST6.3Standard: DIN, ANSI, JIS, BSscrew slot ... 4.5~100 mmStandardGB,GB/T,DIN,JIS,BSW,ANSI,ISO & non-standard productsSurfacePlain, Yellow zinc, black phosphated, grey phosphated, ...