Midwest Fastener #8-18 x 9/16 In. Zinc Plated Steel Modified Phillips Truss Head Self-Drilling Screws

A self-drilling screw, or tek screw, is similar to a sheet metal screw, but it has a drill-shaped point to cut through the substrate to eliminate the need for drilling a pilot hole. Ideal for any project involving light gauge sheet metal, awnings, door and window frames, gutters, sheds. As the industrys most trusted fastener supplier, Midwest Fastener has earned a reputation for delivering a complete line of high-quality bulk and construction fasteners to meet consumer needs. Contractors and DIYers alike have come to depend on Midwest Fastener to provide them with the critical parts and fasteners necessary to ensure the success of their projects.