The DEWALT 21° 3” x .131 Hot Dipped Galvanized Ring Shank Nails come in a pack of 2000 and are made of steel. These box nails have a flat head style and are galvanized for durability. Perfect for home improvement projects, these nails are ideal for various building and hardware needs. The inch system of measurement ensures precise results, making them a reliable choice for any DIY enthusiast or professional contractor.