Empire 23LB0058 C-clamp Locknut 550 Lb Ductile Iron

Product Description

The EMPIRE 23LB0058 is a ductile iron C-clamp with locknut designed for pipe and conduit support in mechanical, HVAC, and electrical installations. It handles a maximum load capacity of 550 pounds and accepts a 5/8 inch threaded rod, making it a standard hanger component for suspended piping and duct systems. The locknut secures rod position and resists vibration-induced loosening over time. Licensed plumbers, pipefitters, HVAC mechanics, and electrical contractors use this clamp to attach threaded hanger rod to structural flanges during system rough-in and overhead installations.

This clamp is suited for commercial and industrial overhead support applications where beam or flange mounting is required. It fits flanges up to 3/4 inch thick and up to 2 inches wide, covering a wide range of structural steel, I-beam, and wide-flange sections commonly found in commercial buildings. The 5/8 inch rod size is a standard hanger rod diameter across plumbing, HVAC, and fire protection trades.

Key Features

• 550 pound load capacity for reliable overhead support
• Ductile iron construction for strength and impact resistance
• Accepts 5/8 inch threaded hanger rod
• Fits flanges up to 3/4 inch thick and 2 inches wide
• Locknut included to secure rod position and resist loosening
• cULus Listed, FM Approved, and MSS SP-69 (Type 23) compliant

Compatibility

Designed as an OEM-style replacement and standard-fit component for overhead pipe and conduit hanger assemblies using 5/8 inch threaded rod on structural flanges up to 3/4 inch thick and 2 inches wide.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or HVAC mechanics working to IPC, IFGC, or NEC overhead support requirements. De-energize or shut off any nearby live systems before working overhead. Position the clamp on the flange and tighten the locknut securely to prevent rod migration under load or vibration. Do not exceed the 550 pound rated load capacity for this clamp.