Southwire 557 2-1/2 inch GND Locknut

Product Description

The SOUTHWIRE 557 is a 2-1/2 inch grounding locknut, manufactured from steel with a zinc-plated finish. This component is designed for securing rigid or IMC conduit to steel outlet boxes and metal enclosures, ensuring a reliable electrical connection. It is engineered to tighten without deformation, maintaining structural integrity. The locknut meets multiple standards including UL 514B and NEMA/ANSI FB-1, making it suitable for various industrial and commercial applications.

• Secures 2-1/2 inch rigid or IMC conduit to steel outlet boxes and metal enclosures.
• Constructed from durable steel with a zinc-plated finish for enhanced corrosion resistance.
• Engineered to tighten without deformation, ensuring a stable and long-lasting connection.

Product Highlights

Durable 2-1/2 inch steel grounding locknut, zinc-plated, for secure conduit connections in electrical systems.

Product Information

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: 557
• Country of Origin: Unknown

Technical Specifications

• UPC: 751338153103
• SKU: SOUTHWIRE-557
• Manufacturer Part Number: 557
• Category Level 1: Conduit & Conduit Fittings
• Category Level 2: Conduit Fittings
• Category Level 3: Conduit Locknuts
• Finish: Zinc Plated
• Material: Steel
• Size: 2-1/2-8
• Suitable For Use With: Rigid/IMC Conduit to Steel Outlet Box/Metal Enclosure
• Manufactured By: Southwire Company
• Country of Origin: Unknown
• Standard: UL 514B, UL File Number E323726, cULus, US Federal Specification Number A-A-50552, NEMA/ANSI FB-1, Military Specification Number W-F-406D, W-F-406E, W-F-408D, W-S-610D
• Trade Size: 2-1/2 in.