What type of nails to use for hardie plank siding?

For Hardie Plank siding, it's recommended to use hot-dipped galvanized or stainless steel nails to prevent rust and corrosion. Typically, 1.75-inch to 2.5-inch roofing or siding nails with a minimum of a 0.092-inch shank diameter are suitable. Ensure the nails are long enough to penetrate at least 1.25 inches into the underlying framing for proper hold. Always follow the manufacturer's guidelines for installation.