Universal 4x4 Post Anchor Base - Heavy-Duty Steel, Ideal for Decks & Railings

Heavy-Duty Steel, Ideal for Decks & Railings. Height of 5-1/2”, ideal for firmly anchoring to concrete or wooden floors. Convenient installation options on both wooden and concrete floors. Suggested to use #51 drill bit for 5/8" expansion bolts installation.

eBay