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The VALUE COLLECTION HCI50310200G-100BX is a 5/16-18 x 2-inch hex head cap screw designed for general fastening applications across mechanical, structural, and industrial assembly work. Manufactured from Grade 5 steel with a hot-dipped galvanized finish, this screw delivers reliable corrosion resistance in outdoor, wet, or chemically exposed environments. The partial threading along the shank allows for controlled clamping force and is well suited to applications where the unthreaded shank must pass cleanly through a clearance hole before engaging the mating thread. Sold in a box of 100, this fastener is a standard inventory item for contractors, maintenance technicians, and fabricators working in the field or shop.
This hex head cap screw is appropriate for residential and commercial construction, mechanical assemblies, equipment mounting, and general structural fastening where a Grade 5 steel fastener with corrosion-resistant coating is specified. The UNC thread form is the most widely used standard thread in inch-based applications, making this screw a practical fit for the broadest range of nuts, tapped holes, and standard hardware. The hot-dipped galvanized finish is commonly specified for outdoor installations, treated lumber connections, and applications subject to periodic moisture exposure.
Designed as a standard UNC inch-series hex head cap screw compatible with 5/16-18 threaded nuts, tapped holes, and standard hardware conforming to inch-measurement fastener specifications.
Install using a socket wrench, box wrench, or impact driver fitted with the appropriate hex socket. Ensure the mating nut or tapped hole is clean and free of debris before driving. When fastening into treated lumber or outdoor structural applications, verify that the galvanized coating grade meets the applicable building code requirement. Do not mix with metric fasteners of similar appearance, as thread pitch is not interchangeable.
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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