#8-18 x 1/2" Zinc Plated Steel Hex Washer Head Self-Drilling Screws SDSHWS-101Type: Self Drilling Screws
Head Style: Hex Washer (1/4" Socket)
Point Type: Drill
Thread Size: 18
Thread Length: Full
Type: Self-Drilling Screw
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.