Value Collection 828330BR Hex Lock Nut 1-3/8-6 Grade 8

Product Description

The VALUE COLLECTION 828330BR is a heavy-duty hex lock nut designed for high-load fastening applications where vibration resistance is critical. It uses a distorted-thread locking style, which deforms the thread profile slightly to create prevailing torque without relying on secondary locking elements. Sized at 1-3/8-6 UNC with a right-hand thread direction, this nut is manufactured from Grade 8 steel and finished with a clear cadmium coating for corrosion resistance. Standing 1-9/16 inches high with a width across flats of 2 inches, it is suited for structural and mechanical assemblies in demanding environments. Licensed mechanics, millwrights, and industrial maintenance technicians are the primary installers.

This nut is used in heavy mechanical, industrial, and structural fastening applications where a standard hex nut would back off under dynamic or vibration loads. The UNC (Unified National Coarse) thread standard makes it compatible with standard inch-system bolts and threaded rod at the 1-3/8-6 pitch. Typical installation scenarios include equipment mounting, heavy machinery assembly, agricultural equipment, and construction hardware applications requiring Grade 8 strength ratings.

Key Features

• Distorted-thread locking style provides prevailing torque without secondary hardware
• Grade 8 steel construction meets high-strength fastener requirements
• Clear cadmium finish provides corrosion and oxidation resistance
• 1-3/8-6 UNC right-hand thread for compatibility with standard inch-system fasteners
• Width across flats of 2 inches fits standard heavy-duty wrenches and sockets

Compatibility

Designed as a standard prevailing-torque hex lock nut for use with 1-3/8-6 UNC inch-system threaded fasteners in structural and mechanical assemblies.

Installation Notes

Installation is performed by licensed mechanics, millwrights, or qualified maintenance technicians using a properly sized wrench or impact socket. Ensure mating bolt or threaded rod meets the same Grade 8 or equivalent strength rating to avoid thread stripping. De-energize and lock out any equipment before servicing fasteners on live machinery per applicable OSHA lockout/tagout procedures. Distorted-thread lock nuts are generally single-use; replace with a new nut if removed and re-torqued is required by the application specification.