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The VALUE COLLECTION B52001614 is a nylon insert hex lock nut designed to resist loosening under vibration and dynamic loads. Manufactured from Grade B steel with a zinc-plated finish for corrosion resistance, this nut features a 1-1/8-12 UNF right-hand thread. The nylon insert creates interference with the mating thread, providing a reliable prevailing-torque locking mechanism without the need for adhesives or additional locking hardware. It measures 1-11/64 inches in height with a 1-5/8 inch width across flats, making it suitable for standard hex tooling in professional fastening applications.
This hex lock nut is used across a wide range of mechanical and structural assembly applications where fastener retention is critical. Typical installation scenarios include machinery assembly, equipment mounting, and structural connections where vibration or cyclic loading is present. The 1-1/8-12 UNF thread size is common in medium-to-heavy-duty applications in industrial, HVAC, and plumbing equipment installations. It is installed by licensed tradespeople and skilled technicians working in commercial and industrial environments.
Designed as an OEM-style replacement or general-use hex lock nut for applications requiring a 1-1/8-12 UNF nylon insert prevailing-torque nut in Grade B steel.
Installation should be performed by a qualified technician using the appropriate hex socket or open-end wrench sized for a 1-5/8 inch across-flats hex nut. De-energize and isolate all associated equipment before performing any fastener work on mechanical assemblies. Nylon insert lock nuts are designed for single-use applications in critical assemblies; reuse may reduce locking effectiveness. Torque to the fastener assembly specification provided by the equipment manufacturer.
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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