Simpson Strong-Tie HDIA31 Description

The Simpson Strong-Tie Hollow Drop-In Anchor (HDIA) is an internally threaded, flush-mount expansion anchor designed for use in hollow materials such as CMU and hollow-core plank, as well as in solid base materials like brick and concrete.

Simpson Strong-Tie HDIA31 Includes

• (50) Hollow Drop-In Internally Threaded Anchors

Simpson Strong-Tie HDIA31 Features

• Suitable for suspending conduit, cable trays, pipe supports, fire sprinklers, and suspended lighting into concrete
• Expansion design allows anchoring into CMU, hollow-core plank, brick, normal-weight concrete, and lightweight concrete
• Internally threaded anchor allows for easy bolt removal

Simpson Strong-Tie HDIA31 Applications

• Suspending conduit and cable trays
• Pipe supports and fire sprinklers
• Suspended lighting into concrete

Simpson Strong-Tie HDIA31 Installation Overview

1. Drill a hole in the base material using the specified diameter carbide drill bit.
2. Blow the hole clean using compressed air.
3. Insert the HDIA into the hole and tap with a hammer until flush against the surface.
4. Using the designated setting tool, drive the anchor to the bottom of the drilled hole.
5. Position the fixture, insert the fastener, and tighten.

Simpson Strong-Tie HDIA31 Specifications