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The VALUE COLLECTION MPPI03100620-100BX is a 5/16-18 x 5/8 inch pan head machine screw with a Phillips drive, sold in a box of 100. Manufactured from Grade 2 steel with a zinc-plated finish, this screw meets standard UNC (Unified National Coarse) thread specifications. The pan head profile provides a low-profile, wide-bearing surface suitable for general fastening applications. The zinc coating offers basic corrosion resistance in mildly humid environments. This screw is a standard industrial fastener used by electricians, HVAC technicians, plumbers, and general mechanical tradespeople across a broad range of equipment assembly and service tasks.
This machine screw is suited for residential and light commercial applications where a UNC-threaded, medium-strength fastener is required. Typical uses include securing sheet metal enclosures, electrical panel components, HVAC equipment access panels, and plumbing fixture brackets. The 5/16-18 thread is one of the most common coarse-thread sizes found in trade equipment, making this box-quantity pack practical for service vans and shop stock. The 5/8 inch length, measured under the head, is appropriate for fastening through light-gauge metal or thermoplastic components.
Designed as a general-purpose UNC machine screw compatible with any standard 5/16-18 tapped hole or nut in steel, aluminum, or thermoplastic assemblies.
Installation requires a standard No. 2 Phillips screwdriver or bit. Always ensure the mating tapped hole or nut matches the 5/16-18 UNC thread specification before installation. Power down and de-energize any electrical equipment before fastening or removing hardware on live assemblies. Do not overtighten Grade 2 fasteners in soft materials or thin sheet metal to avoid thread stripping.
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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