PLACE OF ORIGIN:JIANGSU,CHINA(MAINLAND) BRAND:ZG MODEL NUMBER:ZG15 STANDARD: ALL PORT:SHANGHAIMATERAIL:STAINLESS STEELSIZE:ALLDELIVER DETAIL:15-20DAYSFINISH:ZINC PLZTEDQUALITY CONTROL:100 INPECTION DURING PRODUCTION. CERTIFICATE: ISO14001,ISO9001,ROHS SELF DRILL CSK SCREWS