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The VALUE COLLECTION R52001190 is a partially threaded hex head cap screw designed for general industrial and mechanical fastening applications. It features a 3/8-16 UNC thread size and measures 4-1/4 inches under the head. Manufactured from Grade 5 steel with a zinc-plated finish, it delivers solid tensile strength and basic corrosion resistance suitable for a wide range of structural and assembly tasks. This fastener meets ASME B18.2.1 and SAE J429 standards, making it appropriate for engineered assemblies where recognized dimensional and mechanical property compliance is required. Trades including millwrights, pipefitters, and general mechanical contractors commonly use fasteners of this type in equipment mounting, structural framing, and machinery assembly.
This cap screw is suited for use in both light industrial and commercial mechanical installations where a partially threaded shank is needed to draw mating surfaces together without threading into the grip zone. The 3/8-16 UNC thread pattern is one of the most common coarse-thread configurations in inch-standard assemblies, making this screw widely applicable across equipment platforms, brackets, flanges, and structural connections that call for an inch-system fastener with Grade 5 mechanical properties.
Designed as a standard inch-series hex head cap screw for use in any application requiring a 3/8-16 UNC thread, 4-1/4 inch length under head, and Grade 5 mechanical properties per SAE J429.
Installation should be performed by a qualified mechanic or tradesperson using an appropriately sized hex wrench or socket. Always verify that the mating tapped hole or nut matches the 3/8-16 UNC thread standard before installation. De-energize and lock out any equipment before fastener work begins on live machinery. Do not substitute this fastener in applications requiring Grade 8 or higher tensile strength without engineering review.
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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