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GRH Gas-Actuated Rod Hanger Assembly


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The GRH is a preassembled MEP (mechanical, electrical and plumbing) fastener designed to secure 1/4" or 3/8" threaded rods to concrete. The versatile GRH assembly consists of a smooth-shank fastener, with a premounted cold-formed steel bracket that features a threaded hole for the hanging rod. This rod hanger is for high-volume applications and works with gas-actuated concrete nailer tools as well as with common powder-actuated tools for fastening into harder substrates (structural steel or extra-hard concrete) when required.

Key Features

  • The minimum effective shank length must equal or exceed the sum of the thickness of the attached material and the minimum embedment depth
  • Designed for use with Simpson Strong-Tie® GCN-MEP tools and compatible with many other concrete nailers and PAT equipment

Design Information and Load Tables

Related Literature

Product Information Table

Fastener Production Information and Stuff & Things
Model No. Description Pin Length (in.) Pin Head Dia. (in.) Pin Shank Dia. (in.) Compatible Tools Packaging Qty. Packs/Carton
GRH25-R100 1/4" rod hanger (0.063"-thick) with pin 1 0.283 0.126 GCN-MEPMAG 100 6
GRH37-R100 3/8" rod hanger (0.063"-thick) with pin 1 0.283 0.126 GCN-MEPMAG 100 6

Code Reports & Compliance