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The VALUE COLLECTION 31212 is a 5/16-24 UNF hex nut designed for right-hand threaded fastening applications. Manufactured from steel with a zinc-plated finish for corrosion resistance, this nut measures 0.5 inches across the flats and stands 17/64 inches high. It is a standard unified fine-thread fastener suited for mechanical assemblies, equipment maintenance, and general trade work where a secure, repeatable thread engagement is required. Electricians, HVAC technicians, plumbers, and maintenance professionals commonly use fine-thread hex nuts when working with sheet metal, thin-wall tubing, and precision-fitted components.
This hex nut is appropriate for use in both residential and light commercial applications. It is well suited for securing components in HVAC equipment, electrical enclosures, plumbing fixtures, and general mechanical assemblies where a 5/16-24 UNF thread specification is called out. The zinc-plated finish provides a basic level of corrosion protection suitable for indoor and protected outdoor environments.
Designed as a standard replacement or stocking hex nut for any assembly specifying a 5/16-24 UNF right-hand threaded fastener.
Installation should be performed by a qualified technician familiar with fastener torque requirements for the host assembly. Always power down or de-energize equipment before accessing fastened components in electrical or HVAC systems. Use a correctly sized wrench or socket to avoid rounding the hex flats. Do not overtighten; consult the host equipment manufacturer specifications for appropriate torque values.
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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