0.25 x 4 in. Phillips Flat Head Screws Notched Thread Blue Ceramic Coating Box of 500

Features Meets ASTM A 510 for carbon steel manufacturing. Meets ASTM B 117 for salt spray corrosion - 500 hours. Notched threads for cutting into concrete brick and cement block. Hi-Low thread pattern creates higher pullout tolerances. Diamond point design cuts and clears debris during installation for better thread engagement. Ceramic coating provides protection from corrosion. ACQ compatible. Material Application - Attaches wood or metal to concrete brick cement block or masonry. Family - Concrete Screws. Blue Ceramic Coating. Notched Threads. Diamond Point. Size - 0.25 x 4 in. Box of 500. - SKU: ZX9ITCP618