Value Collection KP66145 Hex Lock Nut 1/2-20 Unf Grade C 50 Pack

Product Description

The VALUE COLLECTION KP66145 is a 1/2-20 UNF hex lock nut with a distorted thread locking style, designed to resist loosening under vibration and dynamic loads without the need for a separate locking insert or nylon element. Manufactured from Grade C steel with a zinc-plated and waxed finish, this nut provides corrosion resistance and consistent torque performance on installation. The right-hand thread follows standard UNF inch-series fastener specifications. It is sold in a package of 50 and is suited for general mechanical assembly and maintenance applications across HVAC, plumbing, electrical, and industrial trades.

This hex lock nut is used in residential and commercial mechanical installations wherever a reliable, reusable thread-locking fastener is required on 1/2-20 UNF threaded fasteners. Distorted thread nuts are commonly applied in vibration-prone environments such as equipment mounting, fan assemblies, motor brackets, and structural panel connections. The zinc-and-wax finish supports installation in mildly corrosive or outdoor-adjacent environments. Tradespeople working on HVAC equipment frames, electrical enclosures, and plumbing supports will find this a standard consumable for field and shop work.

Key Features

• Distorted thread locking style resists loosening under vibration without secondary locking components
• 1/2-20 UNF right-hand thread per inch-series fastener standards
• Grade C steel construction for reliable mechanical strength in general-duty applications
• Zinc-plated with wax finish for corrosion resistance and consistent installation torque
• Packaged in quantities of 50 to support multi-unit jobs and shop stock
• Does not meet military specifications — appropriate for commercial and trade applications

Compatibility

Designed as a standard UNF inch-series hex lock nut for use with any 1/2-20 right-hand threaded fastener in general mechanical, HVAC, electrical, and plumbing assembly applications.

Installation Notes

Installation is performed with a standard hex wrench or socket set sized for 1/2-inch fasteners. Ensure mating threads are clean and free of debris before installation to maintain the distorted thread locking engagement. Do not reuse distorted thread lock nuts in critical load-bearing applications after removal, as repeated cycling reduces the locking effectiveness. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly.