Thomas Betts M-775-L-3/8B C-clamp L-clamp with Locknut 850 Lb

Product Description

The THOMAS BETTS M-775-L-3/8B is a full-size top C-clamp and L-clamp assembly with locknut, designed for securing threaded rod to structural flanges in commercial and industrial applications. Built from steel, this clamp handles a rated load capacity of 850 pounds and accepts a 3/8-inch threaded rod with a maximum flange thickness of 3/4 inches. The integrated locknut provides positive retention once the assembly is positioned, reducing the risk of loosening under vibration or dynamic loads. Electricians, mechanical contractors, and pipefitters rely on this type of fitting when hanging conduit, pipe, duct, or cable tray from structural steel beams and channels.

This clamp is suited for use in commercial construction, industrial facilities, and infrastructure projects where threaded rod support systems are required. It mounts to the top flange of I-beams, channels, and similar structural members, allowing a 3/8-inch support rod to be suspended below. Typical installations include HVAC duct support systems, electrical conduit hangers, pipe support assemblies, and cable management frameworks. The all-steel construction makes it appropriate for indoor and sheltered outdoor environments where mechanical strength is the primary requirement.

Key Features

• Full-size top C-clamp and L-clamp configuration with integrated locknut for secure rod retention
• 850 lb rated load capacity for heavy-duty support applications
• Accepts 3/8-inch threaded rod for standard hanger assemblies
• Maximum flange thickness of 3/4 inches for compatibility with common structural steel profiles
• Steel construction provides mechanical strength and durability

Compatibility

Designed as an OEM-style structural support fitting for use with 3/8-inch threaded rod hanger systems on structural steel flanges up to 3/4 inches thick.

Installation Notes

Installation is typically performed by licensed electricians, mechanical contractors, or ironworkers following applicable building codes and NECA or SMACNA standards. Ensure the structural member is capable of supporting the intended load before attachment. Tighten the locknut securely after positioning the clamp and seating the threaded rod. De-energize any nearby electrical systems and relieve system pressure in adjacent piping before working in the installation area.