1 1/2″ Joist Hanger HDG Nails 5LB from Canada Fastening Crop are heavy-duty nails designed to be used with joist hangers and other framing hardware. The hot-dip galvanized coating provides extra protection against corrosion and rust, making them suitable for use in outdoor and marine environments. The spiral shank provides a strong grip, helping to prevent the nails from loosening over time.