Simpson HDIA50 1/2" Hollow Drop-In Anchor - Zamac 3, Pkg 50 Deck Hangers fill the fastener hole(s) in

fill the fastener hole(s) in the bottom of the hanger seat (THASR/L29 has one and all other models have two)

Lumber Size: Intended for use with 9x beams and 8x posts/columns and includes necessary SDS screws for quick installation

ensuring exceptional resistance to weathering

For professional results

ensuring corrosion resistance

Simpson HDIA50 1/2" Hollow Drop-In Anchor - Zamac 3, Pkg 50 Deck Hangers fill the fastener hole(s) inThe 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.