Steel drywall screw Material:steel Treatment:white zinc Head:hexagon head Size: M6*15, M6*20 Product name: machine screwRelated Products: wood screw, chipboard screw, ball screw, hex head screwbolt screw, bolts and nuts, self drilling screw, self tapping screw, machine screw, furniture screwdrywall screw, screw nut, screw cap,High strength bolts Fast Quotation within 24hoursFast Delivery time and ...