Simpson HDIA31 Hollow Drop-In Internally Threaded expansion Anchor 5/16" Portable Rebar Cutter Back-to-back pairing on a single

Back-to-back pairing on a single piece of lumber without fastener interference

The 1212HLHDG measures 12 in

standoff helps prevent rot at the end of the post by keeping the wood elevated away from the concrete surface

Genuine Simpson Strong-Tie replacement part ensures proper fit and reliable performance

Simpson HDIA31 Hollow Drop-In Internally Threaded expansion Anchor 5/16" Portable Rebar Cutter Back-to-back pairing on a singleThe Simpson Strong Tie HDIA31 Hollow Drop In Internally Threaded Expansion Anchor is an internally threaded, flush mount expansion anchor engineered for attaching threaded rod to support conduit, cables, and lighting. Manufactured by Simpson Strong Tie, this anchor is uniquely designed to perform in both hollow base materials such as CMU and hollow core plank and solid base materials including brick, normal weight concrete, and lightweight concrete,