Value Collection R52001619 Hex Lock Nut 3/8-16 Zinc

Product Description

The VALUE COLLECTION R52001619 is a heavy hex lock nut with a nylon insert locking mechanism, designed for general-purpose fastening in mechanical, HVAC, plumbing, and electrical panel assemblies. Sized at 3/8-16 UNC thread, this nut is manufactured from Grade 2 steel with a zinc-plated finish that provides basic corrosion resistance in indoor and light-duty outdoor environments. The nylon insert creates interference with the bolt thread, resisting loosening from vibration and torque cycling without the need for adhesive thread-locking compounds. At 35/64 inches high and 39/64 inches across the flats, it fits standard hex tooling.

This hex lock nut is suited for residential and light commercial applications where a secure, reusable fastener is required. Typical uses include equipment mounting, ductwork hardware, electrical enclosures, pump and motor assemblies, and structural bracketing. The right-hand thread direction is standard for general fastener work. Minimum order quantity is 50 pieces, making this appropriate for shop stock, service vehicle inventory, or project-quantity procurement.

Key Features

• Nylon insert locking style resists vibration-induced loosening without adhesives
• 3/8-16 UNC right-hand thread for compatibility with standard inch-series bolts and studs
• Grade 2 steel construction meets general-purpose fastener requirements
• Zinc-plated finish provides corrosion resistance for indoor and light-duty applications
• Heavy hex profile at 39/64 inches across flats allows firm wrench engagement
• Width across points of 0.763 inches suits standard open-end and socket tooling

Compatibility

Designed for use with 3/8-16 UNC inch-series bolts and threaded rod in general mechanical and trade fastener applications.

Installation Notes

Install and remove using a standard 39/64-inch or equivalent open-end, box-end, or socket wrench. Nylon insert lock nuts can be reused a limited number of times before the insert loses effective locking force; replace if the nut spins freely without resistance. Always de-energize and lock out electrical equipment before fastening hardware inside enclosures. Follow applicable mechanical codes for torque requirements based on joint application.