Value Collection 329210BR Jam Nut 7/8-9 Unc Grade 2 Steel

Product Description

The VALUE COLLECTION 329210BR is a 7/8-9 UNC jam nut machined from Grade 2 steel with a bright, uncoated finish. Jam nuts are low-profile hex nuts used to lock a standard nut in place or secure a threaded assembly where height clearance is limited. This fastener carries a right-hand thread and measures 1-5/16 inches across the flats with a height of 0.4844 inches. It is suited for general mechanical and structural fastening applications where a full-height hex nut is not required and thread-locking function is needed.

This jam nut is used across a broad range of trade and industrial applications including HVAC equipment mounting, plumbing fixture support, electrical enclosure assembly, and general mechanical work. Its Grade 2 steel construction makes it appropriate for light to medium-duty fastening tasks. The bright, uncoated surface is suited for indoor or protected environments where corrosion exposure is minimal.

Key Features

• Low-profile jam nut design for thread-locking and space-constrained installations
• 7/8-9 UNC right-hand thread for compatibility with standard unified coarse thread fasteners
• Grade 2 steel construction for light to medium-duty mechanical fastening
• Bright, uncoated finish for clean contact surfaces in dry or protected environments
• 1-5/16 inches across flats for use with standard hex wrenches and sockets

Compatibility

Designed for use with 7/8-9 UNC threaded rods, bolts, and studs in general mechanical, HVAC, plumbing, and electrical assembly applications where a jam or locknut function is required.

Installation Notes

Installation is performed with a standard 1-5/16-inch hex wrench or socket. Power down and de-energize any equipment before accessing fasteners on live assemblies. When using as a jam nut, thread the jam nut first, then thread the full nut against it and torque both together to resist loosening. Refer to applicable mechanical or structural codes for fastener torque and load requirements specific to your application.