Sheet Metal Roofing Screws with hex washer head. These self starting roofing screws come with an EPDM washer already on the screw. The washer will form a seal that will keep your roofing and siding from leaking at the attach points. These screws are good for installing roofing and siding on a wide variety of buildings. Hex washer head, self starting roof screw with EPDM washer seal Corrugated roofing and corrugated siding screws Light Gray colored anti-corrosion coating Roofing screw has a sharp point to enable it to penetrate metal roofing and siding without a drill Metal-to-wood roof screws