#8-18 x 3/4" 410 Stainless Steel Hex Washer Head Self-Drilling Screws with Sealing WashersType: Sealing Washers
Diameter 2: 9/32"
Material: Stainless Steel
Head Style: Hex Washer (1/4" Hex)
Point Type: Drill
Thread Size: 18
Thread Length: Full
Style: With Sealing Washer
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.