Value Collection B52001622 Heavy Hex Lock Nut 3/4-10

Product Description

The VALUE COLLECTION B52001622 is a heavy hex lock nut with a nylon insert locking mechanism, designed for use with 3/4-10 UNC threaded fasteners. Manufactured from Grade 2 steel with a zinc-plated finish, this nut provides corrosion resistance in general-purpose mechanical and structural applications. The nylon insert creates interference with the bolt thread, resisting loosening caused by vibration or dynamic loading. At 1 inch in height and 1-1/4 inches across the flats, it meets standard heavy hex dimensional requirements. Right-hand thread direction is standard for conventional installation with a wrench or socket.

This lock nut is suited for maintenance, repair, and fabrication work across HVAC equipment frames, plumbing support structures, electrical enclosures, and general mechanical assemblies. It is appropriate for applications where vibration resistance is needed and the operating temperature stays within the nylon insert's rated range. Installers in the trades use these nuts to secure threaded rod, carriage bolts, and machine bolts in both residential and light commercial settings.

Key Features

• Nylon insert locking style resists loosening under vibration without damaging the mating thread
• Grade 2 steel construction suitable for general-purpose fastening loads
• Zinc-plated finish provides basic corrosion resistance for indoor and protected outdoor use
• 3/4-10 UNC thread size with right-hand thread direction for standard installation
• Heavy hex profile — 1-1/4 inches across flats — provides increased wrench contact area
• 1 inch nut height accommodates the full nylon insert for consistent locking performance

Compatibility

Designed for use with 3/4-10 UNC right-hand threaded bolts, screws, and threaded rod following Unified National Coarse thread standards. Suitable as a general-purpose heavy hex lock nut replacement in standard inch-measurement assemblies.

Installation Notes

Install using a standard wrench or socket sized for a 1-1/4 inch hex. Ensure the mating bolt or rod is free of debris and damage before threading the nut on by hand to confirm proper engagement. Nylon insert lock nuts are generally considered single-use — once the nylon is compressed and removed, the locking effectiveness is reduced and replacement is recommended. Do not exceed the nylon insert's temperature limitations in high-heat environments such as direct contact with exhaust components.