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The VALUE COLLECTION MP30050 is a fully threaded hex head cap screw designed for general-purpose fastening in mechanical, structural, and industrial applications. It carries a 3/8-16 UNC thread and measures 1/2 inch under the head. Manufactured from Grade 5 steel with a zinc-plated finish for basic corrosion resistance, this fastener conforms to ASME B18.2.1 dimensional standards. It is driven with a 9/16-inch hex key or wrench. This package contains 25 pieces, making it suitable for job-site restocking, maintenance kits, or small-batch assembly work performed by mechanics, millwrights, plumbers, and HVAC technicians alike.
These screws are appropriate for light-to-medium duty bolted connections in residential and commercial mechanical systems. Common uses include mounting brackets, equipment panels, pipe hangers, electrical enclosures, and HVAC component supports where a 3/8-16 UNC threaded hole or nut is present. The fully threaded shank provides thread engagement along the full length of the fastener, making it a good fit for thin-material joints or through-bolted assemblies. Grade 5 strength is sufficient for the majority of non-critical structural fastening tasks encountered in trade service work.
Designed as a standard 3/8-16 UNC hex head cap screw compatible with any tapped hole, hex nut, or threaded insert conforming to UNC 3/8-16 thread form per ASME B18.2.1.
Installation is performed by hand-threading the screw into a matching 3/8-16 UNC tapped hole or paired nut before driving to snug with a 9/16-inch open-end, box-end, or socket wrench. Always verify that the mating thread is clean and undamaged before installation. De-energize or isolate any equipment before fastening components within live electrical or mechanical systems. Do not exceed the rated torque for Grade 5 fasteners of this diameter as published in applicable mechanical or structural 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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