AC4Z, 4x4 Twin Post Cap Z-Max, Connectors Are Always Installed In Pairs & Connect 4 x 4 Wood Members At Right Angles, Eliminates Driving Nails Into End Grain, Nails Can Be Added In The Triangle Holes To Increase Uplift Load Capacity, Made With 18 Gauge Z-Maximum Galvanized Steel For Strength & Durability, Minimum Value Install With 12 16D HDG Nails Into Beam, Eight 16D HDG Nails Into Post, Maximum Value Install With Fourteen 16D HDG Nails Into Beam, Fourteen 16D HDG Nails Into Post.