Value Collection CLNI20310-100BX Two-way Lock Nut 5/16-18

Product Description

The VALUE COLLECTION CLNI20310-100BX is a two-way distorted thread lock nut used to secure threaded fastener assemblies in applications where vibration or dynamic loading can cause conventional nuts to loosen over time. Manufactured from Grade 2 steel with a zinc finish for basic corrosion resistance, it features a 5/16-18 UNC thread size with right-hand thread direction. The distorted thread locking mechanism creates interference at engagement, eliminating the need for a separate locking insert or nylon element. At 17/64 inches high and 1/2 inch across the flats, it fits standard hex tooling. This box contains 100 nuts. Installation is performed by electricians, plumbers, HVAC technicians, millwrights, and general maintenance mechanics across a wide range of industries.

This lock nut is suited for general industrial, mechanical, and structural assembly work where a reusable, all-metal locking fastener is required. Typical applications include equipment frames, brackets, HVAC equipment panels, electrical enclosures, pipe support hardware, and light-duty structural connections. The two-way designation means the nut can be driven onto the fastener in either direction, offering installation flexibility in confined or awkward access situations. The zinc finish provides a base level of corrosion resistance appropriate for indoor or protected outdoor environments.

Key Features

• Distorted thread locking style creates mechanical interference without an insert, maintaining holding force under vibration
• Two-way installation allows the nut to be run on from either end of the threaded fastener
• 5/16-18 UNC thread size fits standard inch-series fastener stock
• Grade 2 steel construction suitable for general-purpose fastening applications
• Zinc finish provides basic corrosion resistance for indoor and sheltered use
• Standard 1/2 inch width across flats accepts common hex wrenches and sockets

Compatibility

Designed for use with 5/16-18 UNC inch-series threaded fasteners in general industrial, mechanical, and maintenance assembly applications.

Installation Notes

This fastener is installed by hand or with standard hex tooling sized for a 1/2 inch across-flats hex nut. Ensure the mating threaded rod or bolt is free of damage or contamination before engagement. Because the locking action relies on thread distortion, the nut should not be reused after removal if the thread interference has been significantly reduced. Follow applicable mechanical codes and equipment manufacturer torque guidance for the fastener size and joint material.