XL- SS HWH SDS 10-16X1/2

Diameter: #10 Length: 1/2 Material: Stainless Steel Head Style: Hex Washer (Hex) Point Type: Drill Thread Size: 16 Thread Length: Full Hardness: 410 Type: Self-Drilling Screw Diameter 3: 13/32 Box of 55. 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.