Simpson Strong-Tie Hollow Drop-In Internally Threaded Anchor

The HDIA hollow drop-in anchor is an internally threaded, flush-mount expansion anchor designed for attaching threaded rod to support a variety of conduit, cables and lighting. This anchor is ideal for use with hollow base materials such as CMU and hollow-core plank as well as in solid base materials such as brick and both normal-weight and lightweight concrete. The HDIA can easily be installed in both hollow and solid materials with a setting tool.

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

Specifications (all models)

• Packaging Type: Box

Available options (see each model for exact values)

• Length (in.): 3/4, 1 1/4, 1 3/4, 2
• Threads per Inch: 11, 13, 16, 18, 20
• Dimensions: 3/4, 1 1/4, 1 3/4, 2
• Bolt/Rod Diameter (in.): 1/4, 5/16, 3/8, 1/2, 5/8
• Drill Bit Diameter (in.): 3/8, 5/8, 3/4, 1