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The VALUE COLLECTION R50000229 is a 5/16-18 x 1 inch round head slotted machine screw manufactured from alloy steel with a zinc-plated finish. It follows the Unified National Coarse (UNC) thread standard and is measured length-under-head. The zinc plating provides basic corrosion resistance for general indoor and light-duty outdoor applications. The round head profile sits above the work surface and is driven with a standard flat-blade screwdriver. This fastener is a common choice for assembling mechanical components, brackets, enclosures, and equipment panels across HVAC, electrical, plumbing, and general trade work.
This screw is suited for residential and commercial trade applications where a UNC-threaded 5/16-18 fastener is required. Typical uses include securing sheet metal assemblies, control panels, access doors, mounting brackets, and general mechanical subassemblies. It is sold in a minimum order quantity of 100 pieces per order and packaged as a single unit quantity. Trade professionals in HVAC, electrical, and mechanical contracting will find this size stocked as a standard field fastener.
Designed as a standard UNC machine screw for use in any application requiring a 5/16-18 threaded fastener with a round slotted head and 1 inch length under head.
Install using a flat-blade screwdriver sized to fit the slot without slipping. Ensure the receiving hole or nut is tapped to 5/16-18 UNC specification before driving the screw. Do not overtighten, as alloy steel screws in softer base materials can strip threads or crush gaskets. Power down any electrical equipment and depressurize any mechanical systems before performing fastener work on live assemblies.
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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