Value Collection 329390PR Hex Jam Nut 5/16-24 Unf Grade 2

Product Description

The VALUE COLLECTION 329390PR is a 5/16-24 UNF hex jam nut machined from Grade 2 steel with a bright, uncoated finish. Jam nuts are thin hex nuts used to lock a standard nut in place or to secure a threaded fastener in applications where a full-height nut would interfere with assembly. At 3/16 inches tall and 1/2 inch across the flats, this nut seats against a mating nut or surface to prevent loosening under vibration or torque. The right-hand thread follows standard UNF conventions. Electricians, plumbers, HVAC technicians, and general trade mechanics use jam nuts throughout panel mounting, equipment bracing, and threaded-rod assemblies.

This jam nut is suited for residential and light commercial trade applications wherever a 5/16-24 UNF threaded fastener requires a locking or positioning nut. Common use cases include conduit support hardware, equipment mounting frames, valve stem lockouts, and threaded-rod strut channel assemblies. The uncoated finish is appropriate for dry or indoor environments. This SKU is sold as a single nut with a minimum order quantity of 100 pieces per order.

Key Features

• Jam nut profile at 3/16 inches height for low-clearance locking applications
• 5/16-24 UNF right-hand thread for standard inch fine-thread compatibility
• Grade 2 steel construction for general-purpose mechanical fastening
• 1/2 inch across flats fits standard 1/2 inch open-end or box wrench
• Bright uncoated finish suited for dry indoor installations

Compatibility

Designed as a standard replacement or supplemental jam nut for any assembly using a 5/16-24 UNF threaded fastener requiring a locking nut.

Installation Notes

Installation requires a 1/2 inch open-end wrench or combination wrench. Thread the jam nut onto the fastener and tighten it against the mating nut or surface to lock the assembly. Verify thread engagement is clean and free of debris before torquing. This nut does not meet military specifications and should not be used in safety-critical structural applications without verifying grade requirements.