Simpson HDIA37 Hollow Drop-In Internally Threaded expansion Anchor 3/8" Dovetail Router Bits Exterior outdoor living structures such

Exterior outdoor living structures such as pergolas

Certified welds for confidence in strength and loading performance

SDS-Max shank style provides a secure

What makes this "Premium" version different from a standard EB-TY fastener

12 is a pair of profiled carbide knives R=15/32 inch and R=23/32 inch large roundover/cove for CMT spindle moulder cutter heads

Simpson HDIA37 Hollow Drop-In Internally Threaded expansion Anchor 3/8" Dovetail Router Bits Exterior outdoor living structures suchThe 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