Value Collection MP34286 Hex Lock Nut 1/2-20 Zinc-plated

Product Description

The VALUE COLLECTION MP34286 is a 1/2-20 UNF hex lock nut with a nylon insert locking mechanism, manufactured from Grade 2 steel with a zinc-plated finish. The nylon insert creates interference with the mating thread to resist loosening caused by vibration or torque. The nut measures 39/64 inches in height with a 3/4-inch width across flats and features a right-hand thread direction. It is suited for general mechanical assembly, maintenance, and repair applications across plumbing, HVAC, electrical, and industrial trades where a reliable, reusable locking fastener is required.

This hex lock nut is used in a wide range of residential and light commercial assembly scenarios. It is appropriate for any application requiring a 1/2-20 UNF fine-thread fastener with vibration-resistant locking. Typical install contexts include equipment mounting, bracket assembly, and mechanical panel fabrication where thread loosening under load or vibration is a concern. The zinc-plated finish provides basic corrosion resistance for indoor and sheltered outdoor environments.

Key Features

• Nylon insert locking style resists loosening from vibration without damaging mating threads
• Grade 2 steel construction for standard-duty mechanical applications
• Zinc-plated finish provides basic corrosion protection
• 1/2-20 UNF fine-thread specification for precise thread engagement
• Right-hand thread direction — standard installation orientation
• 39/64-inch height and 3/4-inch width across flats for use with standard hex tooling

Compatibility

Designed for use with any 1/2-20 UNF fine-thread bolt or stud in standard-duty mechanical assemblies requiring a nylon insert hex lock nut.

Installation Notes

Installation is performed with a standard hex wrench or socket sized to 3/4 inch across flats. Ensure the mating bolt or stud is clean and free of debris before driving the nut to full engagement. The nylon insert is rated for a limited number of reuse cycles — inspect the insert for deformation before reusing a previously installed nut. No special torque values or certifications apply beyond the requirements of the specific assembly being serviced.