Value Collection 330130PS Hex Jam Nut 1/2-13 Grade 2 Zinc

Product Description

The VALUE COLLECTION 330130PS is a 1/2-13 UNC hex jam nut manufactured from Grade 2 steel with a zinc-plated finish. Jam nuts are thin hex nuts used as locknuts to secure a standard nut in place or to fasten assemblies where limited axial space requires a low-profile fastener. This nut measures 3/4 inches across the flats and 5/16 inches in height. The right-hand thread conforms to UNC standards. It is a general-purpose industrial fastener suited for maintenance, repair, and fabrication work across mechanical, HVAC, plumbing, and electrical trade applications.

This jam nut is used in a wide range of light to medium-duty mechanical assemblies. Common applications include threaded rod installations, equipment mounting hardware, vibration-dampening locknut configurations, and structural connections where a full-height nut is not required. The zinc plating provides a basic level of corrosion resistance suitable for indoor and sheltered outdoor environments. Trades commonly encounter this fastener when securing threaded rods in conduit hangers, pipe supports, and equipment mounting frames.

Key Features

• 1/2-13 UNC right-hand thread for compatibility with standard inch-series threaded fasteners
• Grade 2 steel construction for general-purpose mechanical applications
• Zinc-plated finish provides basic corrosion protection in dry or sheltered environments
• Low-profile jam nut design at 5/16 inches in height conserves axial space
• 3/4-inch width across flats accepts standard SAE wrenches and sockets

Compatibility

Designed for use with 1/2-13 UNC inch-series threaded rod, bolts, and studs in general mechanical and trade fastening applications.

Installation Notes

Installation is performed by hand and standard trade personnel across mechanical, HVAC, plumbing, and electrical disciplines. Use a properly sized 3/4-inch open-end, box, or socket wrench to torque the nut. When used as a locknut, thread the jam nut against a standard nut and hold one while tightening the other to create a binding friction lock. Inspect threads for damage before installation and do not use on fasteners with mismatched thread standards.