1.hex head screw nut 2.finished:plain,zinc/nickle plated,black 3.certificated:ISO9001:2008 hex head screw nuts/female screw/nutset/capnut/bolts1. For appliance spare parts,eg.furniture,electronic and eletrical appliance,automobile, sport equipment,medical equipment.2. materials: aluminum,stainless steel, copper , alloys,mild steel,middle carbon steel3. finish: plain,black,zinc/nickel plated4. ...