Professional-grade hex head masonry screw engineered for permanent fastening in concrete, brick, and stone materials. With a 1/4" diameter shaft and 1 1/4" length, these screws deliver exceptional holding strength for structural and finish applications. The hardened steel construction resists corrosion and withstands demanding job site conditions. This 50-piece pack provides ample supply for medium to large masonry projects. Installation is straightforward—no pilot holes needed. Simply position and drive for immediate, rock-solid results.