Value Collection 39634 Hex Lock Nut 1-1/2-6 Grade 8 Steel

Product Description

The VALUE COLLECTION 39634 is a heavy-duty hex lock nut with a nylon insert locking mechanism, designed for use in high-load fastening applications. The nylon collar deforms around the mating thread to resist loosening from vibration and torque without the need for adhesives or external locking hardware. Built from Grade 8 steel with an uncoated finish, this nut is suited for structural and mechanical assemblies where fastener integrity under sustained stress is critical. The 1-1/2-6 UNC thread size targets large-diameter bolted connections typical in industrial, heavy equipment, and infrastructure applications. Installation is handled by maintenance mechanics, millwrights, and structural assemblers.

This nut fits 1-1/2-6 UNC threaded bolts and studs in right-hand thread configurations. Grade 8 steel construction makes it appropriate for high-tension joints in steel fabrication, mounting frames, machinery bases, and similar load-bearing assemblies. The uncoated finish is standard for indoor or protected environments where corrosion exposure is minimal. At 1-39/64 inches in height and 2-3/16 inches across the flats, the nut requires a standard hex wrench or impact socket of matching size.

Key Features

• Nylon insert locking style resists loosening under vibration without thread damage
• Grade 8 steel construction for high-tensile fastening applications
• 1-1/2-6 UNC right-hand thread for compatibility with standard large-diameter threaded fasteners
• Uncoated finish — suitable for protected or indoor environments
• Height of 1-39/64 inches and width across flats of 2-3/16 inches for use with standard hex tooling

Compatibility

Designed as an OEM-style replacement or standard fitment for 1-1/2-6 UNC threaded bolts and studs in industrial and structural assemblies using right-hand thread fasteners.

Installation Notes

Installation should be performed by qualified mechanics or structural assemblers familiar with large-diameter fastener torque procedures. Always confirm the mating bolt thread specification matches 1-1/2-6 UNC before installation. Use an appropriately rated hex socket or open-end wrench sized to 2-3/16 inches across the flats. Nylon insert lock nuts are generally considered single-use — inspect the nylon collar for deformation before reuse.