Drywall Screw :with drilling point, bugle head, phillips drive, coarse ... zinc coated drywall screwblue zinc coated drywall screw.Material:steel wire,iron wire Main Feature:with drilling point, bugle ... ,color zinc coated,blue zinc coated... Usage:Drywall screw do much less damage to wood and are easier ... and more widely used in wood,instead of wood screw,metal,all kinds of board... Package:1000pcs/box,10 ...