Self-drilling tapping screws for fastening polycarbonate and PVC directly to aluminum and steel supporting members. Hex-head with weatherseal washer.
- Galvanized coating to resist rust and corrosion
- Galvanized coating to resist rust and corrosion
- EPDM washer use only EPDM washed fasteners with suntuf, suntop, and palruf corrugated roofing
