Value Collection CLNFI20620-050BX Hex Lock Nut 5/8-18

Product Description

The VALUE COLLECTION CLNFI20620-050BX is a distorted-thread hex lock nut designed to resist loosening under vibration and dynamic loads. Sized at 5/8-18 UNF, it offers a fine-thread pitch suited for applications requiring tighter fastener engagement. Manufactured from Grade 2 steel with a zinc-plated finish, this nut provides baseline corrosion resistance for general indoor and light-duty outdoor installations. At 35/64 inches high with a 15/16-inch width across flats, it fits standard 15/16-inch wrenches and sockets. Licensed tradespeople and skilled technicians installing mechanical systems, electrical enclosures, or HVAC equipment components will find this a straightforward, code-compatible fastener solution.

This hex lock nut is suited for residential and light commercial applications where a reliable, reusable locking fastener is needed without a separate nylon insert or free-spinning flange. Common install scenarios include securing brackets, mounting hardware, conduit supports, equipment frames, and mechanical assembly joints. The distorted-thread locking style creates prevailing torque mechanically, making it a two-way lock nut that holds in both tightening and loosening directions. Right-hand thread direction follows standard fastener convention, compatible with UNC and UNF bolt patterns at the 5/8-18 specification.

Key Features

• Distorted-thread locking style provides prevailing torque without additional locking hardware
• Two-way lock nut design resists loosening in both tightening and loosening directions
• 5/8-18 UNF fine thread for tighter engagement and greater tensile load capacity per thread
• Grade 2 steel construction for general-purpose mechanical fastening
• Zinc-plated finish for basic corrosion resistance in indoor and sheltered environments
• Right-hand thread direction follows standard UNC and UNF fastener convention

Compatibility

Designed as a standard-thread replacement or service fastener for 5/8-18 UNF bolt applications in residential and light commercial mechanical, HVAC, plumbing support, and electrical enclosure installations.

Installation Notes

Installation requires a standard 15/16-inch wrench or socket. Power down or de-energize any equipment before servicing fasteners on electrical or HVAC assemblies. Distorted-thread lock nuts may show increased wear after repeated removal and reinstallation — replace if prevailing torque is no longer felt during threading. Follow applicable mechanical and electrical codes, including NEC guidelines where fasteners are used in electrical enclosure assemblies.