Value Collection 329410PR Jam Nut 3/8-24 Unf Grade 2 Steel

Product Description

The VALUE COLLECTION 329410PR is a 3/8-24 UNF jam nut manufactured 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 where limited axial space is available. At 0.2188 inches in height with a 9/16-inch across-flats dimension, this nut is designed for right-hand thread engagement on 3/8-24 unified fine thread fasteners. Plumbers, electricians, HVAC technicians, and general trade professionals use jam nuts wherever a locking or low-profile fastening solution is required on fine-thread fasteners.

This jam nut is suited for light to medium-duty fastening applications across residential and commercial maintenance, equipment assembly, and mechanical installations. The 3/8-24 UNF thread specification makes it compatible with fine-thread bolts and studs commonly found in equipment panels, brackets, conduit fittings, and mechanical assemblies. The bright uncoated finish is appropriate for dry or protected indoor environments where corrosion exposure is minimal.

Key Features

• 3/8-24 UNF right-hand thread for standard fine-thread fastener engagement
• Low-profile jam nut design at 0.2188 inches in height for space-constrained applications
• 9/16-inch across flats for use with standard hex wrenches and sockets
• Grade 2 steel construction provides adequate strength for light to medium-duty use
• Bright uncoated finish suitable for indoor and protected environments
• Does not meet military specifications — intended for standard commercial applications

Compatibility

Designed for use with 3/8-24 UNF right-hand thread bolts and studs in standard commercial fastening applications. Not rated to military specifications.

Installation Notes

Install using a standard 9/16-inch open-end wrench or hex socket. When used as a locking jam nut, thread it against a primary nut and tighten the two nuts against each other to prevent loosening under vibration. Ensure the mating fastener thread standard matches UNF before installation to avoid cross-threading. Minimum order quantity for this item is 100 pieces.