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The VALUE COLLECTION R63488028 is a standard acorn nut machined from brass with a nickel plated finish. Acorn nuts, also called cap nuts, feature a domed top that covers exposed thread ends, protecting the fastener and mating material from corrosion and contact damage. This nut uses a 5/16-24 UNF right-hand thread, measures 9/16 inches across the flats for standard wrench engagement, and stands 3/8 inches in overall height. The brass base material offers good corrosion resistance and conductivity, while the nickel plating adds surface hardness and a silver appearance. Technicians in HVAC, electrical, plumbing, and general mechanical applications install these nuts where a finished, protective cap over a stud or bolt end is required.
This acorn nut is suited for light to medium fastening applications across residential and commercial mechanical systems. Common install scenarios include terminal stud protection on electrical enclosures, decorative or protective fastening on HVAC access panels, plumbing fixture hardware, and general equipment assembly where exposed thread ends need to be covered. The 5/16-24 UNF thread standard is common in precision mechanical and HVAC equipment assemblies. The nickel plated brass construction makes this nut appropriate for indoor environments and applications where mild corrosion resistance is needed without the cost of stainless steel.
Designed as a standard replacement or addition for assemblies using 5/16-24 UNF threaded studs or bolts where a domed cap nut is specified.
Install using a standard open-end or combination wrench sized to 9/16 inches across the flats. De-energize and lock out any electrical circuit before working on terminals or enclosures where these nuts are used. Do not overtighten brass nuts against hard surfaces, as brass is softer than steel and thread damage can occur without proper torque control. Consult applicable codes such as NEC for electrical enclosure fastener requirements before installation.
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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