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The VALUE COLLECTION DNI031P5-100BX is a Grade 2 steel acorn nut with a 5/16-18 UNC thread size and a nickel plated finish. Acorn nuts, also called cap nuts, feature a domed top that covers exposed bolt threads, protecting them from damage and contamination while providing a clean, finished appearance. This nut measures 9/16 inches across the flats and 3/8 inches in overall height. The right-hand thread direction and UNC thread standard make it compatible with standard inch-series fastener systems. Weighing 0.1 pounds per unit, it is well suited for light-duty fastening applications across mechanical, electrical, and general trade work.
This acorn nut is used in a wide range of residential and commercial applications where thread protection and a finished appearance are required. Typical installations include equipment panels, enclosures, brackets, and exposed fastener assemblies. The nickel plating provides mild corrosion resistance, making it appropriate for indoor and light-duty environments. Trade professionals including electricians, HVAC technicians, and general contractors commonly use this style of nut when a clean, capped fastener end is specified or preferred.
Designed for use with 5/16-18 UNC threaded bolts, studs, and rods following standard inch-series UNC thread specifications.
Install using a standard 9/16 inch hex wrench or socket driver. Power down or de-energize any equipment before fastening hardware near electrical components. Do not overtighten Grade 2 steel nuts, as this grade has lower tensile strength than Grade 5 or Grade 8 hardware. Follow applicable mechanical or electrical codes when used in rated assemblies.
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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