Self-Drilling Screw, #6 x 1-7/8 in, Black Phosphate Steel Flat Head Phillips Drive, 35 PK
Ideal for any project involving light gauge sheet metal, awnings, door and window frames, gutters, sheds.. 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.