Value Collection NLI2087NU-025BX Hex Lock Nut 7/8-9

Product Description

The VALUE COLLECTION NLI2087NU-025BX is a heavy hex lock nut with a nylon insert, designed to resist loosening under vibration and dynamic loads. Threaded to a 7/8-9 UNC specification with a right-hand thread direction, this nut is manufactured from Grade 2 steel with a bright uncoated finish. It measures 31/32 inches in height and 1-7/16 inches across the flats. The nylon insert creates interference with the bolt thread, providing a mechanical locking action without requiring adhesives or external lock washers. It is installed by maintenance technicians, millwrights, and general contractors across a wide range of structural and mechanical assemblies.

This heavy hex lock nut is suited for general industrial, commercial, and construction fastening applications where vibration resistance is required. The 7/8-9 UNC thread size fits standard fractional bolts and threaded rod commonly found in structural steel connections, machinery frames, equipment mounting, and utility installations. The nylon insert is effective for applications that do not involve sustained exposure to high heat, as extreme temperatures can degrade insert performance.

Key Features

• Nylon insert provides mechanical locking action to resist loosening from vibration
• 7/8-9 UNC right-hand thread for compatibility with standard fractional fasteners
• Heavy hex profile offers greater wrench engagement and torque capacity than standard hex
• Grade 2 steel construction for general-purpose strength requirements
• Bright uncoated finish — suitable for indoor or protected environments
• Single-piece packaging with no minimum order requirement beyond one unit

Compatibility

Designed as an OEM-style replacement or standard fastening component for any assembly using 7/8-9 UNC threaded bolts or rod in inch-measurement applications.

Installation Notes

Installation is performed by hand-threading the nut onto the mating bolt or stud until the nylon insert engages, then driving to the required torque using a standard open-end, box-end, or socket wrench sized for a 1-7/16 inch hex. Nylon insert lock nuts are generally considered single-use fasteners — once removed, the locking effectiveness of the insert is reduced and replacement is recommended. Do not use this nut in applications where continuous temperatures exceed the rated limits of nylon inserts. Follow applicable mechanical and structural codes for the specific assembly type.