Grabber's #8 x 1-1/2 in. Woody Square-Drive Flat-Head Coarse-Thread GrabberGard® Brown Wood Screws (5,000 Pack) use a GrabberGard® limited lifetime exterior-grade coating to provide additional corrosion protection in most exterior applications. The square drive is engineered for secure bit engagement, while the coarse thread promotes effective fastening in wood and the flat head helps the screw seat cleanly into the material. Supplied in a bulk 5,000-count package, these screws are suited to professional exterior wood construction projects where consistent installation and a large supply of compatible wood fasteners are required.