(8000) 10 x 5/8 Self Drilling TEK 2 Hex Washer Head Zinc Siding Screw #137719. STRONG-POINT® UNSLOTTED INDENTED HEX WASHER HEAD, ZINC PLATED. This self-tapping screw is recommended for medium guage sheet metal.Commonly used in HVAC ductwork. The item "(8000) 10 x 5/8 Self Drilling TEK 2 Hex Washer Head Zinc Siding Screw #137719" is in sale since Thursday, July 13, 2017. This item is in the category "Business & Industrial\Material Handling\Packaging & Shipping\Other Packaging & Shipping". The seller is "shinersusa" and is located in Grand Prairie, Texas. This item can be shipped to United States.