SEPCO 118R Straight Rod Coupling for Threaded Rod, Zinc-Plated Steel

SEPCO 118R Straight Rod Coupling for Threaded Rod, Zinc-Plated Steel

The SEPCO 118R Straight Rod Coupling is a zinc-plated steel fitting that joins two lengths of threaded rod into one continuous, secure run, available in 1/4-Inch, 3/8-Inch, and 1/2-Inch trade sizes to match the rod diameter on your job. Straight rod couplings like the 118R are common hardware for electricians and installers extending threaded rod used to suspend conduit, cable tray, strut channel, or other support hardware from a structural ceiling or wall. The straight, in-line design keeps rod runs aligned without offset, so the finished support assembly stays plumb and true across every size in the 118R line. The zinc-plated finish helps resist corrosion in indoor installation environments, giving the coupling a longer service life than uncoated steel hardware.

Key Features

• Trade Size: Offered in 1/4-Inch, 3/8-Inch, and 1/2-Inch versions so you can match the coupling to the threaded rod diameter used in your support run.
• Durable Steel Construction: Solid steel body provides the strength needed for structural and support applications.
• Zinc-Plated Finish: Zinc plating helps resist corrosion for reliable long-term indoor performance.
• Straight Coupling Style: Inline configuration keeps threaded rod runs straight and properly aligned.
• Industry-Standard Thread: Each trade size uses the standard machine thread for that rod diameter, keeping the 118R compatible with widely available threaded rod stock for easy sourcing and replacement.
• Tool-Friendly Installation: The compact, straight-through profile threads on quickly with hand tools for fast rod-to-rod connections.

Technical Specifications

• Finish: Zinc-Plated
• Trade Size: 1/4-Inch - 1/2-Inch

Typical Applications

• Conduit and Cable Tray Support Systems
• Threaded Rod Hanging Assemblies
• Electrical and Mechanical Support Hardware
• Strut and Rod Suspension Systems
• Commercial and Light Industrial Installations
• MRO and Facility Maintenance Rod Repairs

Why SEPCO?

The SEPCO 118R Straight Rod Coupling delivers dependable zinc-plated steel construction across its full 1/4-Inch to 1/2-Inch size range, for professionals who need secure, reliable threaded rod connections. Its straightforward straight-coupling design and corrosion-resistant finish make it a practical choice for support and suspension applications where a dependable rod-to-rod connection point is essential. Standardized on common threaded rod sizes, the SEPCO 118R is easy to specify, stock, and install alongside other SEPCO support hardware. Choose SEPCO 118R hardware built to perform in demanding installation environments.