H2.5AZ, Hurricane Tie Z-Max, Designed For Easy Installation, Designed To Help Counter Extreme Winds Generated By Nature, Provides Resistance To Uplift & Lateral Forces, Install In Pairs To Connect 2 x Rafter To Top Plate, Z-Maximum Galvanized For Extra Corrosion Resistance, Install With Five 8D x 1-1/2" Nails To Rafter, Five 8D x 1-1/2" Nails To Plate.