Self-Drilling Screw, #12 x 1-1/4 in, Zinc Plated Steel Hex Head Hex Drive, 69 PK, Buildright, Mfr#: 54827

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.