Manufactured for quick and easy installation, Fas-n-Tite Metal Cap Roofing Nails are ideal for applying shingles to asphalt, insulation, roofing underlayment and felt paper. The large head and ringed shank provide strong holding power for a secure finish. The bright finish on these nails improves long-term corrosion resistance. Do not use in treated lumber or where corrosion is a concern.