(1500) 14 x 2 Self Drilling TEK 3 Hex Washer Head Zinc Siding Screw #137741. STRONG-POINT® UNSLOTTED INDENTED HEX WASHER HEAD, ZINC PLATED. This self-drilling screw drills a hole and taps a thread in a single operation.The item "(1500) 14 x 2 Self Drilling TEK 3 Hex Washer Head Zinc Siding Screw #137741" 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.