1) Standard:DIN125, DIN9021 2) Size: M3-M76 3) Material: stainless steel 4) Surface treatment: plain, zinc, black, nickel, 1) Standard: ANSI,ASME,DIN,BS,NEF,JIS,GB2) Size: M3-M763) Material: Carbon steel or stainless steel or others4) Surface treatment: plain, zinc, black, nickel, chrome, HDG5) Package: in bulk, 25kgs per carton, then on pallet or small box or according to customers requirement