Features: * Annular ring threads provide secure attachment of cedar, redwood and other stable decking materials to deck joists and preclude nail head popping * Slender shanks permit nailing at board ends without splitting * Small, unobtrusive checker pattern heads blendwith wood grain and diffract sunlight * NOTE: choose 316 Stainless Steel for seaside applications and superior corrosion resistance * .148 in. diameter x 3-1/2 in. length What"s In The Box: * Simpson Strong-Tie/Swan Secure S16PTD5 16D Stainless Steel Deck Nail - 5-Lb