Value Collection CLNI20500-100BX Hex Lock Nut 1/2-13

Product Description

The VALUE COLLECTION CLNI20500-100BX is a distorted-thread hex lock nut designed to resist loosening under vibration and dynamic loads without requiring a secondary locking element. Made from Grade 2 steel with a zinc-plated finish, this UNC-threaded fastener measures 7/16 inches high with 3/4 inches across the flats and accepts a 1/2-13 thread. The distorted-thread locking style works by deforming a section of the nut thread, creating prevailing torque that holds the nut in position throughout the service life of the joint. Sold in a box of 100 pieces, this nut is a standard choice for general-purpose mechanical and structural assemblies.

This hex lock nut is suited for a wide range of trade applications including HVAC equipment mounting, electrical enclosure assembly, plumbing fixture installation, and general mechanical fabrication. The 1/2-13 UNC thread size is one of the most common inch-series fastener sizes in commercial and residential equipment. The right-hand thread direction is standard for virtually all general-use fastener applications. These nuts are appropriate wherever Grade 2 steel strength and zinc corrosion protection meet job requirements.

Key Features

• Distorted-thread locking style provides prevailing torque without secondary hardware
• Grade 2 steel construction suitable for general mechanical and structural use
• Zinc-plated finish offers basic corrosion resistance in dry to mildly humid environments
• 1/2-13 UNC right-hand thread, a widely used inch-series standard
• Two-way lock nut design allows installation from either direction
• Sold in a 100-piece box for jobsite and shop stocking

Compatibility

Designed as a standard replacement or stock fastener for any application requiring a 1/2-13 UNC hex lock nut in Grade 2 steel with zinc plating.

Installation Notes

Installation is performed using a standard wrench or socket sized for 3/4 inches across the flats. De-energize and lock out any equipment before servicing fasteners on live assemblies. Prevailing-torque nuts are intended for single-use applications in critical joints — reuse may reduce locking effectiveness. Follow applicable codes such as ASME or project-specific torque specifications when tightening into structural or load-bearing connections.