Small Box Nails Kits are great to have handy around the home or workplace. It contains an assortment of box nails in different sizes for general woodworking jobs. These nails have a flat head which sits flush when driven into wood. Kit contains: 4D x 1-1/2" box nails, 6D x 2" box nails, and 8D x 2-1/2" box nails.