Value Collection 897304BR Hex Lock Nut 1-1/2-12 Grade 8

Product Description

The VALUE COLLECTION 897304BR is a hex lock nut with a nylon insert locking mechanism, designed for high-strength fastening applications requiring reliable resistance to vibration-induced loosening. Manufactured from Grade 8 steel with a bright, uncoated finish, this nut features a 1-1/2-12 UNF right-hand thread and measures 1-39/64 inches in height with a 2-3/16 inch width across flats. It is suited for mechanical assemblies, heavy equipment, and structural connections where torque retention and joint integrity are critical. Licensed trades professionals and industrial maintenance technicians are the primary installers of fasteners in this size and grade range.

This hex lock nut is applicable in heavy-duty mechanical and industrial settings where UNF thread fasteners are specified. The nylon insert provides a prevailing torque locking action, preventing the nut from backing off under vibration or dynamic loading without the need for thread-locking compounds. Typical use cases include agricultural equipment, hydraulic assemblies, large machinery frames, and structural mounting applications that call for a Grade 8 fastener with a non-metallic locking insert.

Key Features

• Nylon insert locking style provides prevailing torque resistance against vibration-induced loosening
• Grade 8 steel construction for high tensile and proof load capacity
• 1-1/2-12 UNF right-hand thread for fine-pitch fastening applications
• Bright, uncoated finish — no coating to affect thread fit or dimensional tolerances
• Height of 1-39/64 inches and 2-3/16 inch width across flats for standard hex tooling
• Sold individually — single-piece minimum order quantity

Compatibility

Designed for use with 1-1/2-12 UNF Grade 8 threaded fasteners and bolts in inch-standard mechanical assemblies.

Installation Notes

Installation of large-format hex lock nuts in this size range typically requires a properly sized box-end or torque wrench capable of handling the 2-3/16 inch across-flats dimension. Always verify that the mating bolt or stud is the correct UNF thread pitch and grade before installation. Nylon insert lock nuts are generally intended for single use; once the nylon insert has been fully engaged and removed, the locking effectiveness may be reduced. Follow applicable equipment manufacturer torque specifications for the assembly being serviced.