The Simpson RSH25112-5 Horizontal Steel Rod Hanger from Simpson is a one-piece, self-drilling threaded anchor engineered for suspending 1/4 in. threaded rod from the side of steel joists, columns, and overhead structural members. Built from zinc-plated carbon steel and driven directly into steel without predrilling, it provides a fast, dependable attachment point for pipe hanging, fire protection systems, electrical conduit support, and cable-tray suspension in dry, interior, non-corrosive environments.

Key Features

• Self-drilling #5 drill point, no predrilling required - drives directly into steel members, saving time and eliminating an extra tool step on the job.
• Horizontal installation orientation - designed specifically for side-entry installation into joists, columns, and overhead members where vertical hangers cannot be used.
• Accepts 1/4 in. - 20 threaded rod - the precisely threaded interior engages 1/4 in. rod at 20 threads per inch for a secure, wobble-free connection.
• Zinc-plated carbon steel construction - resists corrosion in dry interior environments while delivering the structural integrity needed for mechanical, electrical, and fire protection applications.
• Compatible with custom-matched nut driver model RND62 (sold separately) - ensures the anchor is set to its optimal depth every time, producing a consistent and reliable installation.
• One-piece fastening system - no loose components to manage on site, reducing installation complexity and the risk of misassembly.

Why This Product

• Eliminates predrilling for faster installation - the self-drilling design bites directly into steel members ranging from 20 gauge up to 1/4 in. thick, cutting labor time on pipe hanging, conduit support, and fire protection runs.
• Purpose-built for horizontal rod suspension - where most standard rod hangers mount from above, this hanger is specifically engineered for side-of-member applications, giving installers a reliable solution in tight or unconventional framing conditions.
• Engineered depth control with matched tooling - pairing this anchor with the recommended RND62 nut driver takes the guesswork out of setting depth, ensuring every anchor seats consistently for a structurally sound hang point.
• Versatile across multiple trade applications - a single hanger type serves pipe hanging, fire suppression lines, electrical conduit, and cable-tray systems, reducing the number of SKUs a contractor needs to stock for multi-trade projects.

Specifications

• Model Number: RSH25112-5
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Bolt/Rod Diameter: 1/4 - 20
• Anchor Size: #12 - 20 x 1-1/2 in.
• Drill Point: #5
• Compatible Member Size (Steel Thickness): 20 ga. - 1/4 in.
• Packaging: Packs of 25 and Cartons of 250

Approved Applications

• Horizontal installation into the side of steel joists, columns, and overhead members
• Pipe hanging systems
• Fire protection systems
• Electrical conduit support
• Cable-tray suspension
• Dry, interior, non-corrosive environments only

Frequently Asked Questions

Does the RSH25112-5 require predrilling before installation?

No. The RSH25112-5 is a self-drilling anchor, meaning no predrilling is required. It drives directly into steel members for a faster, more efficient installation process.

What size threaded rod is this hanger compatible with?

This rod hanger is designed specifically for 1/4 in. threaded rod with 20 threads per inch (1/4 - 20 thread specification).

What steel thicknesses can the RSH25112-5 be installed into?

The RSH25112-5 is rated for installation into steel members ranging from 20 gauge up to 1/4 in. thick.

Is a special tool recommended for setting this anchor to the correct depth?

Yes. Simpson Strong-Tie recommends using the custom-matched nut driver model RND62 (sold separately) to set the anchor to its optimal depth for a secure, consistent installation.

Note: Product dimensions may differ from picture. Please see the item description above for specifications. Recommended for use in dry, interior, non-corrosive environments only.