Simpson Strong Tie DPT7Z ZMAX Galvanized 14-Gauge 4x4 Deck Post Tie 25-per box Connects a 2x4 or 4x4 post to the outside of stair stringers and rim joists on decks or stairs in new or retrofit construction Easier than through-bolting Made from 14 gauge steel ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications