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The VALUE COLLECTION R63091680 is a 5/16-18 x 3/4 inch hex head cap screw manufactured from brass. It features a Unified National Coarse (UNC) thread standard, a 5/16-18 thread size, and a 3/4 inch length measured under the head. The 1/2 inch hex drive accepts a standard hex wrench or socket. Brass construction offers natural corrosion resistance and non-magnetic properties, making this fastener well suited for applications where steel would corrode or cause galvanic compatibility issues. Plumbers, HVAC technicians, electricians, and general trade professionals use this style of screw in panel assemblies, pipe fittings, junction enclosures, and equipment mounting.
This hex head cap screw is used in light-duty to medium-duty fastening applications across plumbing, HVAC, electrical, and mechanical service work. Brass is commonly specified where corrosion resistance, conductivity, or non-sparking properties are required. Typical installations include securing brass fittings, terminal blocks, ground lugs, panel covers, and equipment brackets in both residential and light commercial settings.
Designed for use in any standard 5/16-18 UNC tapped hole or with a matching 5/16-18 brass or compatible nut, typical in residential and light commercial mechanical, plumbing, and electrical assemblies.
This fastener is installed by qualified tradespeople using a standard 1/2 inch wrench or socket. Power down or de-energize any electrical panel or equipment before fastening near live components. Do not overtighten brass fasteners, as brass is softer than steel and threads can strip under excessive torque. Ensure the mating thread material is compatible with brass to avoid galvanic corrosion in wet or outdoor environments.
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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