The Simpson Strong-Tie® ABA is designed to attach wooden posts to existing concrete. The built-in 1-in. standoff of this adjustable post base helps to prevent rot at the end of the post. The ABA has a slotted anchor hole in the base for adjustability and attaches to the post with nails or Strong-Drive® SD Connector screws. This versatile post base makes a cost-effective option for securing a post to the foundation.Features Increased uplift loads for earthquake or wind loading ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications The slot in the base enables flexibility around the anchor bolt, making precise post placement easier The 1-in. standoff design meets code requirements for structural posts installed in basements or exposed to weather or water splash Made from 16-gauge steel Specifications Depth: 3.493 in Nominal post size: 4x4 Country of Origin: United States