Simpson HDIA31 Hollow Drop-In Internally Threaded expansion Anchor 5/16" Portable Rebar Cutter The standoff reduces the potential

The standoff reduces the potential for decay at post or column ends

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

The symmetrical design eliminates the need for separate right and left parts

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

offering flexibility across a variety of project sizes and connection types

Simpson HDIA31 Hollow Drop-In Internally Threaded expansion Anchor 5/16" Portable Rebar Cutter The standoff reduces the potentialThe 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,