7 x 7/16" Black Phosphate Phillips Pan Sharp Framing Self-Drilling Screws (410 pcs.)

Diameter: #7
Length: 7/16"
Material: Steel
Finish: Black Phosphate
Head Style: Pan (#2 Phillips Bit)
Point Type: Sharp
Thread Size: 19
Thread Length: Full
Type: Self-Drilling Screw

Box of 410.

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.