3-1/2" x 131 Smooth Shank, Galvanized, 28 Degree Wire Weld Full Head Stick Nail. Thick coat galvanization provides consistent high performance. Corrosion resistant coating designed to meet or exceed the performance of ASTM A153. Hot dipped, galvanized specifically designed for use in all pressure treated lumber, and exterior applications. Fits Bostitch model #F28WW, True Value #632556, and other Bostitch models N80SB, N88WW. Comes with 2,000 per pack.