DUPLEX NAIL 3 1/4" Common nails are the most widely used nail used in general construction and are the nail type used where building code requires certain framing construction. These nails have a thick shank and are made from iron wire. They are most commonly used with dimensional lumber (e.g., 2x4 framing). The common nail has a wide head having a smooth or textured surface and has a sharp diamond shaped point.
