Value Collection MP34276 Hex Lock Nut 1/2-13 Zinc-plated

Product Description

The VALUE COLLECTION MP34276 is a 1/2-13 hex lock nut with a nylon insert locking mechanism, manufactured from Grade 2 steel with a zinc-plated finish for corrosion resistance. The nylon insert compresses against the mating thread when the nut is driven down, creating friction that resists loosening from vibration and torque. Standing 39/64 inches high with a 3/4-inch width across flats, this fastener is sized for standard UNC right-hand threaded assemblies. It is a common component used by HVAC technicians, plumbers, electricians, and general tradespeople wherever a reliable, reusable lock nut is required on 1/2-13 threaded rod or bolt stock.

This nut suits a wide range of residential and light commercial applications including equipment mounting, pipe hanger assemblies, electrical panel bracing, duct support systems, and mechanical equipment frames. Any application that experiences sustained vibration or thermal cycling benefits from the nylon insert design, which maintains clamping load without requiring thread-locking compound. The UNC 1/2-13 thread form is one of the most common in North American trade work, making this nut a practical stock item for service vehicles and shop inventory alike.

Key Features

• Nylon insert locking style resists loosening under vibration without thread-locking adhesives
• Grade 2 steel construction provides adequate strength for general mechanical and trade fastening
• Zinc-plated finish adds corrosion resistance for indoor and moderate-exposure installations
• 1/2-13 UNC right-hand thread is one of the most widely used sizes in North American trade applications
• 39/64-inch height and 3/4-inch width across flats fit standard 3/4-inch wrenches and sockets

Compatibility

Designed for use with 1/2-13 UNC right-hand threaded bolts, rods, and studs in standard inch-measurement fastener applications.

Installation Notes

Install and remove using a 3/4-inch open-end wrench, box wrench, or socket. Power down or de-energize any associated equipment before working on fastened assemblies in electrical or HVAC applications. Nylon insert lock nuts are reusable but should be inspected after removal — replace if the nylon insert shows deformation or no longer provides noticeable resistance during run-down. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the assembly type.