Simpson Strong Tie PB66Z Z-Max Post Base Product Description He PB base embeds in wet concrete after pour and is made to install flush with the concrete surface. This product gives strong uplift and lateral load to the post connection. The embossment in the seat of the base gives increased strength. Stress relief holes under the base resist tearing during loading. From the Manufacturer he PB base embeds in wet concrete after pour and is made to install flush with the concrete surface. This product gives strong uplift and lateral load to the post connection. The embossment in the seat of the base gives increased strength. Stress relief holes under the base resist tearing during loading. Features 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 Nominal post size: 6x6 Made from 12-gauge steel USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.