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The VALUE COLLECTION 32283 is a 3/8-24 UNF hex jam nut used to lock a standard hex nut in place and prevent loosening under vibration or repeated load cycles. Machined from steel with a zinc-plated finish for basic corrosion resistance, this jam nut measures 9/16 inches across the flats and 0.2188 inches in height. The right-hand thread conforms to Unified National Fine standards, making it a straightforward replacement or bulk-stock fastener for mechanical assemblies, HVAC equipment panels, plumbing fixture hardware, and general trade applications. It is typically installed by hand or with a standard wrench.
This jam nut is suited for use in residential and light commercial mechanical installations where a low-profile locking fastener is required. Common applications include securing threaded rod assemblies, equipment mounting hardware, valve packing nuts, and vibration-sensitive panel fasteners. The fine thread pitch provides greater thread engagement per unit length compared to UNC, making it preferred in applications requiring precise adjustment or tighter clamp load control. Sold in packages of 50 units.
Designed as a standard 3/8-24 UNF hex jam nut for use in any threaded assembly requiring a right-hand fine-thread locking fastener of this size.
Installation is performed by threading the jam nut onto the fastener by hand and tightening against an adjacent nut or surface using a standard open-end or combination wrench. Turn off or de-energize any equipment before accessing fasteners in live mechanical or electrical assemblies. Do not over-tighten jam nuts against softer base materials, as the thin profile concentrates clamping force on a narrow contact area. Follow applicable mechanical codes and equipment manufacturer guidelines for fastener torque requirements.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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