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The VALUE COLLECTION MPRI03102000-050BX is a 5/16-18 x 2-inch round head Phillips machine screw manufactured from Grade 2 steel with a zinc-plated finish. It features Unified National Coarse (UNC) threading and is measured under the head. The zinc coating provides basic corrosion resistance suitable for general indoor and light-duty fastening applications. This box contains 50 screws, making it appropriate for production assembly, maintenance operations, or any application requiring consistent quantities of a standard fastener. Installation requires a Phillips driver or bit of the appropriate size for the 5/16-inch head.
This screw is used in general mechanical assembly, equipment fabrication, and maintenance repair operations across a wide range of trades and industries. The round head profile sits above the mating surface, making it suitable for applications where a low-profile or flush finish is not required. The 5/16-18 UNC thread pattern is a widely used coarse-thread standard compatible with standard tapped holes and nuts of the same specification. Sold in a minimum order quantity of 50 pieces per box.
Designed as a standard 5/16-18 UNC round head Phillips machine screw suitable for use with any application requiring a fastener of this thread size, head style, and length specification.
Install using a Phillips screwdriver or power driver bit sized for the head. Ensure the mating hole is tapped to 5/16-18 UNC specification or that a matching nut is used. Do not overtighten Grade 2 fasteners in soft or thin materials, as the lower tensile rating compared to higher grades can allow head pull-through or thread stripping. De-energize and lock out any equipment before replacing fasteners in electrical or mechanical 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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