The Simpson RSH25100N Steel Rod Hanger 1/4 in. x 1 in. Horizontal Threaded Anchor for 1/4 in. Rod with Nut by Simpson is a one-piece fastening system designed for suspending threaded rod in horizontal rod-hanging applications. Engineered for installation into the side of steel joists, columns, and overhead members, this self-drilling anchor provides a secure attachment point for pipe hanging, fire protection, electrical conduit support, and cable-tray systems. Recommended for dry, interior, non-corrosive environments only.

Key Features

• Self-drilling design, no predrilling required - drives directly into compatible steel members so installation is faster and requires fewer tools on the job.
• Horizontal installation orientation - installs into the side of steel joists, columns, and overhead members, giving contractors flexibility when vertical access is limited or not applicable.
• Compatible with 1/4 in. threaded rod at 20 threads per inch - the threaded interior matches 1/4 - 20 rod precisely, ensuring a secure, rattle-free connection for suspended systems.
• Custom-matched nut driver compatibility (model RND62, sold separately) - sets the anchor to its optimal installation depth consistently, reducing guesswork and improving performance across every fastener in the run.
• Zinc-plated carbon steel construction - provides corrosion resistance appropriate for dry, interior environments while delivering the structural integrity expected in mechanical, electrical, and fire protection applications.
• Nut included - the pack ships ready to use with the mating hardware already provided, eliminating a separate hardware purchase for standard installations.

Why This Product

• One-piece system simplifies horizontal rod suspension - unlike multi-component alternatives, this threaded anchor integrates the fastening point and attachment hardware into a single unit, reducing parts to manage on elevated or overhead installations.
• No predrilling means faster installation across multiple members - the self-drilling point cuts through steel members from 20 ga. to 12 ga. in a single step, keeping crews moving efficiently through pipe hanging, conduit support, and cable-tray runs.
• Precision-fit threading protects system integrity - the anchor is built specifically for 1/4 - 20 threaded rod, so the connection between anchor and rod is tight and properly matched rather than a general-purpose approximation.
• Backed by Simpson engineering for recognized applications - Simpson designed this anchor specifically for pipe hanging, fire protection, electrical conduit, and cable-tray support, making it a straightforward, code-conscious choice for mechanical and electrical contractors.

Specifications

• Model Number: RSH25100N
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Bolt/Rod Diameter: 1/4 - 20 in.
• Anchor Size: 1/4 in. x 1 in.
• Drill Point: #3
• Compatible Steel Member Thickness: 20 ga. - 12 ga.
• Installation Orientation: Horizontal

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 support applications
• Dry, interior, non-corrosive environments only

What's Included

Each pack contains (25) RSH25100N Horizontal Steel Rod Hanger, Nut included.

Frequently Asked Questions

Does the Simpson RSH25100N require predrilling before installation?

No. The RSH25100N is a self-drilling anchor, meaning no predrilling is required. It drives directly into compatible steel members ranging from 20 ga. to 12 ga. in thickness.

What size threaded rod is this hanger compatible with?

The RSH25100N is designed specifically for 1/4 in. threaded rod with 20 threads per inch (1/4 - 20). It is not intended for use with 3/8 in. or other rod sizes.

Is a special tool required to install this rod hanger to the correct depth?

Yes. Simpson Strong-Tie offers a custom-matched nut driver (model RND62, sold separately) that sets the anchor to its optimal installation depth for best performance.

Can the RSH25100N be used outdoors or in humid environments?

No. This anchor is recommended for use in dry, interior, non-corrosive environments only. Its zinc-plated carbon steel construction is not rated for outdoor, wet, or corrosive conditions.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.