precision screw -resistant small colony Advantage: good quality , large production capacity, timely delivery competitive price precision screw -resistant small colonyMATERIAL: 302&303&304 stainless steel , ordinary materialSTANDARD: standard JIS, GB, ANSI, BS.DINDIA: 0.5mm-10mmLENGTH:1mm-180mmPACKING: according to the orderMIN.ORDER:20000 pec