Install roofing, asphalt shingles, insulation board and felts with these Duchesne roofing nails. The steel nails feature an electro-galvanized finish which coats nails with a temporary layer of zinc for added corrosion resistance. The large, flat head provides better retention and the round smooth shank and diamond point ensure superior holding power. These roofing nails are 1" in length and are available in a box of 600 nails.