Simpson HDIA31 5/16" Hollow Drop-In Anchor - Zamac 3, Pkg 50 ABA/ABU/ABW Adjustable Post Bases Fastening Requirements: Use all specified

Fastening Requirements: Use all specified fasteners according to manufacturer guidelines for secure attachment

enhancing strength and stability

Quik Guard® Coating – Provides strong corrosion resistance for long-term durability in outdoor builds

It integrates seamlessly with the full Outdoor Accents hardware line

Pre-notched cone: Ensures quick and secure pipe fitting

Simpson HDIA31 5/16" Hollow Drop-In Anchor - Zamac 3, Pkg 50 ABA/ABU/ABW Adjustable Post Bases Fastening Requirements: Use all specifiedThe Simpson Strong Tie Hollow Drop In Anchor (HDIA) is an internally threaded, flush mount expansion anchor for use in hollow materials such as CMU and hollow core plank, as well as in solid base materials such as brick, normal weight and lightweight concrete. The expansion design allows anchoring to CMU, hollow core plank, brick, normal weight concrete and lightweight concrete while the internally threaded anchor allows for easy bolt removal.