Sheet metal screws typically fall into two categories Self-Drilling (Metal-to-Metal) and Self-Tapping screws (Metal-to-Wood).
- TEK Self-Drilling (Metal) - Hex Washer Heads (HWH), Pan Head
TEK Self-Drilling Roofing Screws - Hex Washer Head (HWH) with Bonded EPDM washer
- Self-Tapping (Wood) - Roofing Screws w/ Bonded Washer, Pan Head, Flat Head, Low-Profile Pancake
- Washers - Bonded Sealing Washers for Sheet Metal Screws