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The VALUE COLLECTION 31203 is a 3/8-16 hex nut made from Grade 5 steel with a zinc-plated finish. It features a right-hand thread pattern conforming to the Unified National Coarse (UNC) thread standard. The nut measures 9/16 inches across the flats and 21/64 inches in height. It is used to secure threaded fasteners in a wide range of mechanical, structural, and trade applications. Maintenance technicians, plumbers, electricians, and general contractors regularly use Grade 5 hex nuts for standard-duty bolted connections where a balance of strength and cost-efficiency is required.
This hex nut is suited for residential and commercial applications involving equipment mounting, pipe hangers, electrical enclosures, structural brackets, and general fastening tasks. The zinc plating provides basic corrosion resistance for indoor and light outdoor use. The UNC thread form is one of the most common standards in North American trade work, making this nut compatible with a broad range of standard 3/8-16 threaded fasteners and bolts found on the job site.
Designed for use with standard 3/8-16 UNC threaded bolts and studs commonly found in mechanical, structural, plumbing, and electrical trade applications.
Installation is performed by hand-threading onto a compatible 3/8-16 bolt or stud, then tightening with a 9/16-inch wrench or socket. Ensure mating threads are clean and free of debris before assembly. Do not exceed the rated load for Grade 5 hardware. Follow applicable codes and torque guidelines for the specific assembly type.
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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