Value Collection 897292BR Hex Lock Nut 1-1/8-12 Grade 8

Product Description

The VALUE COLLECTION 897292BR is a nylon insert hex lock nut designed to resist loosening under vibration and dynamic loads. Manufactured from Grade 8 steel with a bright uncoated finish, this fastener uses an embedded nylon collar to create prevailing torque against the mating thread, eliminating the need for thread-locking compounds in most applications. The 1-1/8-12 UNF thread specification suits fine-pitch applications where precise clamping force and thread engagement matter. Machinists, maintenance technicians, and assembly professionals install this type of nut across mechanical, structural, and equipment-mounting applications.

This nut is suited for heavy-duty bolted assemblies requiring a fine unified thread and high-strength hardware. Grade 8 steel construction makes it appropriate for high-stress joints in industrial equipment, agricultural machinery, truck and trailer frames, and similar load-bearing assemblies where vibration resistance is critical. The nylon insert provides a reusable locking action, though insert effectiveness diminishes with repeated removal and reinstallation cycles.

Key Features

• Nylon insert locking style resists loosening from vibration without adhesives
• Grade 8 steel construction for high tensile and proof load requirements
• 1-1/8-12 UNF fine-pitch thread for precise engagement and clamping
• Right-hand thread direction — standard installation
• Bright uncoated finish suitable for applications not requiring corrosion protection
• 1-5/8 inch width across flats fits standard heavy-hex tooling

Compatibility

Designed as a standard UNF prevailing-torque replacement nut for any Grade 8 or equivalent 1-1/8-12 bolted joint requiring a nylon insert locking feature.

Installation Notes

Installation is performed by hand tool or power tool using a wrench sized to 1-5/8 inches across flats. Ensure the mating bolt or stud is clean and free of damage before threading the nut. Because the nylon insert creates additional resistance, do not use impact tools that may over-torque the joint or damage the insert. Consult the relevant fastener torque standard for Grade 8 hardware when a specific clamp load is required.