Value Collection 330210BR Hex Jam Nut 7/8-9 Grade 2 Zinc

Product Description

The VALUE COLLECTION 330210BR is a 7/8-9 UNC hex jam nut manufactured from Grade 2 steel with a zinc-plated finish. Jam nuts are thinner than standard full hex nuts and are used to lock a primary nut in place or to secure a fastener in applications where a reduced profile is required. This nut features a right-hand thread and measures 1-5/16 inches across the flats with a height of approximately 0.4844 inches. At 0.02 pounds, it is a lightweight hardware component suited for general mechanical and structural assembly work performed by maintenance technicians, millwrights, and general contractors.

This jam nut is appropriate for general-purpose fastening applications in light industrial, commercial, and residential construction settings. The 7/8-9 UNC thread size and Grade 2 steel construction make it suitable for non-critical clamping and locking applications where high-strength fastener grades are not required. It is commonly used in equipment assemblies, frames, and fixture mounting where a thin locking nut is specified. This item is sold individually with a minimum order quantity of 10 units.

Key Features

• 7/8-9 UNC right-hand thread for standard North American fastener compatibility
• Grade 2 steel construction suitable for general-purpose, non-critical assemblies
• Zinc-plated finish provides basic corrosion resistance in mild environments
• Reduced-height jam nut profile for locking applications with limited clearance
• 1-5/16 inches across flats fits standard 7/8-9 hex wrench tooling

Compatibility

Designed for use with 7/8-9 UNC threaded fasteners in general-purpose mechanical and structural assemblies requiring a Grade 2 jam nut.

Installation Notes

Installation is performed by maintenance technicians or mechanical tradespeople using standard open-end or box wrenches sized for 1-5/16 inches across flats. De-energize or shut down any associated equipment before servicing fastener assemblies under load. When used as a locking jam nut, thread the jam nut against the primary nut and torque both simultaneously to prevent backing off — do not over-torque Grade 2 hardware beyond application requirements. Follow applicable mechanical and structural codes for the installation context.