Simpson Strong Tie PB44Z ZMAX Galvanized 12-Gauge 4x4 Post Base 10-per box Embeds in wet concrete after pour and is made to install flush with the concrete surface Embossment in the seat of the base gives increased strength Stress relief holes under the base resist tearing during loading Made from 12 gauge steel ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications