Simpson HDIA37 Hollow Drop-In Internally Threaded expansion Anchor 3/8" Metalworking Radius Sides & Chamfered Edges:

Radius Sides & Chamfered Edges: Streamline alignment and speed up installation without sacrificing precision

Applications where additional bearing surface area at the column seat is required

including concrete masonry unit (CMU) and brick

diameter drill bit is required to create the hole for the EZAC62434 anchor

Teeth: 24 ATB

Simpson HDIA37 Hollow Drop-In Internally Threaded expansion Anchor 3/8" Metalworking Radius Sides & Chamfered Edges:The Simpson Strong Tie HDIA37 HDIA Hollow Drop In Internally Threaded Anchor is an internally threaded, flush mount expansion anchor engineered for attaching threaded rod to support conduit, cables, and lighting. Designed for versatility across both hollow and solid base materials, this anchor delivers reliable holding power in CMU, hollow core plank, brick, normal weight concrete, and lightweight concrete all with the convenience of a flush mount