The Simpson RWH25100 Wood Rod Hanger is a one-piece threaded anchor from Simpson engineered for suspending threaded rod from the side of joists, columns, and overhead wood members in horizontal installations. Built from zinc-plated carbon steel, this horizontal hanger drives directly into wood without a pilot hole, delivering a reliable attachment point for pipe hanging, fire protection, electrical conduit, and cable-tray applications in dry, interior, non-corrosive environments.

Key Features

• One-piece threaded anchor design - eliminates the need for separate hardware, streamlining installation and reducing the number of components to manage on the job site.
• Horizontal installation orientation - allows the anchor to be driven into the side of joists, columns, and overhead wood members, making it the right choice where vertical access is limited or not available.
• No predrilling required - saves time and labor by allowing the anchor to be driven directly into wood without a pilot hole, keeping work moving on busy installations.
• Type-17 point - provides fast, clean starts in wood, reducing drive effort and minimizing the risk of slipping or misalignment during installation.
• Compatible with custom-matched nut driver - the model RND62 nut driver (sold separately) sets the anchor to its optimal depth consistently, ensuring every anchor is seated correctly without guesswork.
• Designed for 1/4 in. threaded rod with 20 threads per inch - the precisely matched thread specification ensures a secure, dependable connection between the anchor and rod in supported systems.
• Zinc-plated carbon steel construction - provides the structural integrity needed for rod-hanging applications while the zinc plating helps resist corrosion in dry, interior environments.

Why This Product

• Truly tool-efficient installation - with no predrilling required and a Type-17 point that starts fast, installers spend less time on each anchor point, which adds up significantly across large pipe hanging, conduit, or cable-tray runs.
• Purpose-built for horizontal wood applications - unlike vertical rod hangers, this anchor is specifically designed to seat into the side of joists, columns, and overhead members, giving contractors a dedicated solution rather than a workaround.
• Consistent depth control with a matched tool - pairing the anchor with the Simpson RND62 nut driver (sold separately) removes the guesswork from installation depth, helping ensure every anchor is set to its optimal position for reliable load transfer.
• Versatile across multiple supported systems - the same anchor handles pipe hanging, fire protection, electrical conduit support, and cable-tray applications, making it a practical stock item for mechanical, electrical, and plumbing contractors working in interior construction.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: RWH25100
• Anchor Size: 1/4 in. x 1 in.
• Bolt/Rod Diameter: 1/4 - 20 (1/4 in. threaded rod, 20 threads per inch)
• Installation Orientation: Horizontal
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Point Type: Type-17
• Packaging: Packs of 25 and Cartons of 250

Approved Applications

• Pipe hanging systems
• Fire protection installations
• Electrical conduit support
• Cable-tray applications
• Suspension from joists, columns, and overhead wood members
• Dry, interior, non-corrosive environments only

Frequently Asked Questions

Does the RWH25100 require predrilling before installation?

No. The RWH25100 requires no predrilling. The Type-17 point is specifically designed to provide fast starts and drive directly into wood members without a pilot hole, saving time on the job.

What size threaded rod is compatible with this anchor?

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

Can this rod hanger be used outdoors or in wet environments?

No. The RWH25100 is recommended for use in dry, interior, non-corrosive environments only. It is not rated for outdoor, wet, or corrosive conditions.

Is a special tool required to install the RWH25100 to the correct depth?

Simpson Strong-Tie offers a custom-matched nut driver (model RND62, sold separately) that sets the anchor to its optimal installation depth, ensuring consistent and proper seating in the wood member.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.