Simpson Strong-Tie Outdoor Accents post bases secure the post or column to concrete and are perfect for outdoor projects, such as pergolas, patio covers and other top-supported structures. These post bases are Zmax finished first and then black powder coated for long lasting outdoor use. This is a rough cut version of the post base which is designed for a "True 6x6" or sometimes called "old lumber" which means the post actually measures 6" x 6". The post base includes a 1" standoff from the concrete to help avoid post-end rot from moisture. This kit includes (1) APVB66R Post Base, (4) SDWS22312DBB Structural Screws, (4) STN22 Hex Head Washers, and (1) THDB62600H4SS Titen HD Screw Anchors required for proper installation.