Empire 21LSS0058 C-clamp Locknut 550 Lb Stainless Steel

Product Description

The EMPIRE 21LSS0058 is a C-Clamp with Locknut designed for pipe hanger and support applications in mechanical, HVAC, and plumbing systems. Constructed from 304 stainless steel, it delivers corrosion resistance in wet, humid, or chemically active environments. The clamp accepts a 5/8 inch rod and accommodates flanges up to 3/4 inch thick, with a rated load capacity of 550 pounds. Licensed trades including HVAC mechanics, pipefitters, and plumbers install this type of hardware when securing pipe runs to structural steel beams or channels.

This C-Clamp with Locknut is used in commercial and industrial mechanical systems where pipe support assemblies attach to beam flanges. The locknut provides a positive lock to prevent vibration-induced loosening over time. At 0.6 pounds, the fitting is lightweight enough for overhead installation without adding significant load to the support structure. It is suited for both new construction and retrofit applications where a stainless steel hanger component is required for corrosion resistance or specification compliance.

Key Features

• 304 stainless steel construction for corrosion resistance in demanding environments
• 550 pound load capacity for robust pipe support applications
• Accepts 5/8 inch threaded rod for standard hanger assemblies
• Maximum flange thickness of 3/4 inch for compatibility with common structural steel sections
• Integrated locknut prevents loosening from vibration
• cULus Listed, FM Approved, and compliant with MSS SP-69 Type 23, SP-58, and UL-ULC standards

Compatibility

Designed as an OEM-style replacement and standard pipe support component for mechanical systems using 5/8 inch threaded rod hanger assemblies with structural beam flange connections up to 3/4 inch thick.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or HVAC mechanic in accordance with applicable mechanical codes such as the IFGC or IPC and pipe support standards. Verify that the beam flange thickness does not exceed 3/4 inch and that the rod size matches the specified 5/8 inch thread before assembly. Torque the locknut firmly to secure the clamp against the flange prior to loading the hanger assembly. Always de-energize or depressurize associated systems before working in the vicinity of existing pipe runs.