Value Collection 34351-1 Hex Lock Nut 3/8-24 Zinc-plated 100 Pack

Product Description

The VALUE COLLECTION 34351-1 is a 3/8-24 UNF nylon insert hex lock nut designed to resist loosening caused by vibration and torque cycling. Built from Grade 2 steel with a zinc-plated finish, this fastener provides reliable corrosion resistance in typical indoor and light-duty outdoor service conditions. The nylon insert compresses against the bolt threads to create a locking friction fit that holds position without deforming the fastener body. This package contains 100 nuts, making it practical for job-site restocking, maintenance carts, or production assembly. HVAC, plumbing, and electrical tradespeople reach for this size when securing equipment panels, mounting brackets, and mechanical assemblies that experience routine vibration.

This lock nut is suited for light to medium fastening applications across residential and commercial trades. The 3/8-24 UNF thread is a fine-pitch standard used on mechanical equipment frames, fan and blower assemblies, and panel hardware. Right-hand thread direction matches standard installation tooling. The zinc-plated finish is appropriate for dry or mildly humid environments. This nut is sold in a 100-piece package with a minimum order quantity of 1 package, making it efficient for both single-job purchases and shop inventory replenishment.

Key Features

• Nylon insert locking style resists loosening under vibration without damaging mating threads
• Grade 2 steel construction provides adequate strength for light to medium load fastening
• Zinc-plated finish adds corrosion resistance for dry and mildly humid service environments
• 3/8-24 UNF right-hand thread for compatibility with standard fine-pitch fastener systems
• 100-piece package quantity supports job-site and shop inventory needs
• 9/16 inch width across flats fits standard 9/16 inch wrenches and sockets

Compatibility

Designed for use with 3/8-24 UNF right-hand threaded bolts and studs in Grade 2 or equivalent steel fastener applications across HVAC, plumbing, electrical, and general mechanical installations.

Installation Notes

Installation and removal should be performed with a correctly sized 9/16 inch wrench or socket to avoid rounding the flats. Nylon insert lock nuts are generally rated for single use - once the nylon insert has been fully engaged and removed, the locking effectiveness is reduced and replacement is recommended. De-energize and lock out equipment before accessing any fastener on powered mechanical assemblies. Follow applicable codes and equipment manufacturer guidelines when selecting fastener grades for structural or pressure-bearing connections.