Metal ROOFING SCREWS: (250) 10 x 1" Light Gray Hex Head Sheet Metal Roof Screw. Self starting metal to wood siding screws. EPDM washer. Colored head #10 Sheet Metal ROOFING SCREWS. Our metal roofing screws are galvanized for corrosion resistance. 250 COUNT Metal-to-wood roofing screws are painted with two part polyurethane for long life. Corrugated roofing and corrugated siding screws for pole barns, storage shed, shops, etc. Hex washer head roof screw with EPDM washer seal, seals roofing panel to screws to prevent leaks. LIGHT GRAY coated roof screw head is painted to closely match many brands of metal roofing.