Value Collection 32279 Hex Jam Nut 7/8-9 Unc Steel 25 Pack

Product Description

The VALUE COLLECTION 32279 is a 7/8-9 UNC hex jam nut designed for use in standard threaded fastening applications requiring a low-profile locking or jamming solution. Manufactured from steel with a zinc-plated finish for basic corrosion resistance, this nut measures 1-5/16 inches across the flats and 0.4844 inches in height. The right-hand thread follows UNC (Unified National Coarse) standards. Sold in a pack of 25, it is well suited for maintenance, repair, and production work across mechanical, plumbing support, and general trade applications where a thin nut is needed to lock a standard nut in place or restrict axial movement on a threaded rod or stud.

This hex jam nut is used wherever a 7/8-9 UNC threaded connection requires a secondary locking nut. Common install scenarios include threaded rod assemblies, equipment mounting, pipe hanger hardware, and mechanical subassemblies. The UNC thread form is widely used in North American trade and industrial applications. The zinc-plated steel construction suits indoor and sheltered environments where light corrosion protection is adequate. The pack quantity of 25 supports both single-job and recurring maintenance needs without overordering.

Key Features

• 7/8-9 UNC right-hand thread for broad compatibility with standard inch-series fastener systems
• 1-5/16 inches across flats for use with standard hex wrenches and sockets
• 0.4844-inch height provides the low profile characteristic of a jam nut for locking applications
• Steel construction with zinc-plated finish for basic corrosion resistance in sheltered environments
• Pack of 25 units supports production, MRO, and field service use

Compatibility

Designed as a standard 7/8-9 UNC hex jam nut suitable for use with any inch-series threaded rod, bolt, or stud conforming to Unified National Coarse thread standards.

Installation Notes

Hex jam nuts are installed by a mechanic or tradesperson using a standard hex wrench or socket sized to 1-5/16 inches across flats. Thread the jam nut onto the fastener and tighten it against an adjacent standard nut or fixed surface to restrict movement. Always ensure mating threads are clean and free of damage before installation. Do not use a jam nut as the sole load-bearing fastener in structural or high-vibration applications without engineering review.