Simpson HDIA37 3/8" Hollow Drop-In Anchor - Zamac 3, Pkg 50 Deck Ties the sweep design helps maximize

the sweep design helps maximize anchor placement while rolled threads provide increased tensile capacity for demanding structural applications

3" or 4 1/2" screws may be substituted for the longer length screws with no load reduction

and job-tested holding power

Face-Mount Installation: Provides a strong

Zinc-Plated Protection: Guards against corrosion in indoor or non-corrosive environments

Simpson HDIA37 3/8" Hollow Drop-In Anchor - Zamac 3, Pkg 50 Deck Ties the sweep design helps maximizeThe 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.