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The VALUE COLLECTION R63223264 is a hex lock nut with a nylon insert locking mechanism, manufactured from 18-8 stainless steel for corrosion resistance in demanding environments. Standing 1/4 inch tall with a 3/8-inch width across flats, this fastener uses a right-hand UNC thread pattern and relies on the nylon insert to grip the mating thread and resist loosening under vibration and dynamic loading. Electricians, plumbers, HVAC technicians, and mechanical contractors reach for nylon insert lock nuts when a secure, reusable fastener connection is required without the need for thread-locking compounds or additional hardware.
This lock nut is suited for general-purpose mechanical assemblies in residential, commercial, and light industrial applications. The 18-8 stainless steel construction makes it appropriate for installations exposed to moisture, mild chemicals, or outdoor conditions where carbon steel fasteners would corrode. It is commonly used in electrical panel builds, HVAC equipment mounting, plumbing fixture installations, and equipment support assemblies where thread integrity must be maintained over repeated service cycles.
Designed as a standard UNC inch-series hex lock nut suitable for use with matching UNC-threaded bolts and studs in general mechanical, HVAC, plumbing, and electrical assembly applications.
Installation should be performed with an appropriately sized hex wrench or socket matching the 3/8-inch width across flats. Torque the nut by hand until the nylon insert engages the mating thread, then tighten to the assembly requirement using standard hand tools. Do not use impact drivers at full power, as excessive speed can damage the nylon insert and reduce locking effectiveness. Always de-energize or shut off the associated system before accessing any fastened assembly in live electrical, HVAC, or plumbing installations.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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