Value Collection SNI2087-025BX Slotted Lock Nut 7/8-9

Product Description

The VALUE COLLECTION SNI2087-025BX is a slotted lock nut designed for secure fastening in threaded assemblies subject to vibration and movement. Machined from Grade 2 steel with a bright, uncoated finish, this nut follows Unified National Coarse (UNC) thread standards. It measures 0.75 inches in height and 1.3125 inches across the flats, making it a standard fitment for 7/8-9 threaded rod, bolt, and stud applications. The slotted design accepts a cotter pin or safety wire, providing a positive mechanical lock that prevents loosening under dynamic loads. Licensed tradespeople and maintenance technicians working with heavy mechanical assemblies will find this a direct, reliable fastener solution.

This slotted lock nut is suited for industrial, mechanical, and structural applications where a 7/8-9 UNC thread form is specified. Typical use cases include shaft retention, bearing preload, axle assemblies, and general machine building where vibration resistance is required. The right-hand thread direction follows standard convention for the majority of threaded fastener applications. The bright, uncoated steel finish is appropriate for indoor, controlled-environment installations or assemblies that will receive additional corrosion protection at the system level.

Key Features

• 7/8-9 UNC right-hand thread for compatibility with standard inch-series threaded components
• Grade 2 steel construction provides adequate strength for general-purpose mechanical fastening
• Slotted hex profile accepts cotter pin or safety wire for positive mechanical locking
• Bright, uncoated finish — no coating buildup to affect thread fit or torque values
• 0.75-inch height and 1.3125-inch width across flats match standard UNC hex nut tooling
• Sold individually, making it easy to source as a direct replacement or single-unit repair part

Compatibility

Designed as a standard UNC-thread slotted lock nut for use with any 7/8-9 inch-series threaded fastener application requiring a mechanically locked hex nut.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson familiar with threaded fastener assemblies. Always confirm the mating thread is 7/8-9 UNC right-hand before installation. A cotter pin or safety wire should be inserted through the slots and the corresponding hole in the bolt or stud after the nut is seated and torqued per the assembly specification to complete the mechanical lock. Do not use impact tools in a manner that could damage the slots or deform the hex profile.