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The VALUE COLLECTION MP30025 is a fully threaded hex head cap screw intended for general mechanical assembly and structural fastening applications. It is manufactured to ASME B18.2.1 standards, ensuring consistent dimensional accuracy across the production run. The fastener measures 5/16-18 thread size with a 1/2-inch length under the head, and is produced from Grade 5 steel with a zinc-plated finish to provide moderate corrosion resistance. This screw is sold in a pack of 50 and is suited for use by maintenance technicians, HVAC installers, plumbers, electricians, and general contractors who require a reliable, code-compliant fastener for equipment panels, brackets, and mechanical assemblies.
This fastener is commonly used in light to medium-duty mechanical assemblies across residential and commercial trade applications. Typical uses include securing electrical enclosure covers, HVAC equipment panels, conduit brackets, and sheet metal components. The UNC thread form and Grade 5 strength rating make it appropriate for standard bolted connections where a hardened or stainless fastener is not specifically required. The pack quantity of 50 suits both single-job use and bench stock replenishment.
Designed as a standard 5/16-18 UNC hex head cap screw for use in any application requiring an ASME B18.2.1-compliant fastener of this thread size and length.
Installation is performed with a standard hex wrench, socket, or open-end wrench sized for a 5/16-18 hex head cap screw. De-energize all electrical equipment and shut off fluid systems before accessing any panel or enclosure that requires fastener removal or replacement. Apply appropriate thread lubricant or thread-locking compound as required by the equipment manufacturer or applicable codes. Do not exceed the rated torque for Grade 5 fasteners of this size, as specified in applicable mechanical or building codes.
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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