Our long-life roofing screws have a domed cap to cover the EDPM washer to reduce UV ware over time. We offer metal to wood, metal to metal, and stitch lap screws with the domed cap. These screws come in 17 different colors to match any project at hand. The metal to wood and metal to metal screws are 1.5" long. The stitch lap screws are 7/8" long. Get a free magnetic hex bit with your order!