1 1/4″ Spiral HDG Nails 5LB from Canada Fasteing Crop are high-quality, hot-dipped galvanized nails designed for use in various construction projects, including framing, roofing, and siding. These nails feature a spiral shank that provides greater holding power and reduced splitting. They are ideal for use in exterior applications where corrosion resistance is necessary, and the 5-pound package provides ample nails for larger projects.