Value Collection MPRI02500620-100BX Machine Screw 1/4-20

Product Description

The VALUE COLLECTION MPRI02500620-100BX is a 1/4-20 x 5/8-inch round head Phillips machine screw manufactured from Grade 2 steel with a zinc-plated finish. This fastener follows Unified National Coarse (UNC) thread standards and is sized by length under the head at 5/8 inches. The zinc plating provides basic corrosion resistance suitable for general indoor and light-duty applications. Sold in a box of 100, this screw is a practical stock item for contractors, maintenance technicians, and tradespeople who need a reliable general-purpose fastener in a standard size.

This machine screw is suited for general assembly and equipment installation tasks across HVAC, electrical, plumbing, and mechanical trade work. The round head profile sits above the mating surface and the Phillips drive accommodates standard #2 Phillips screwdrivers and bits, making it compatible with common hand tools and power drivers found on most job sites. The 1/4-20 thread is one of the most widely used coarse-thread sizes in trade and light industrial applications.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes and hex nuts
• 5/8-inch length measured under the head for precise fitment in standard applications
• Round head profile distributes clamping load over a wider surface area
• Phillips drive works with standard No. 2 Phillips bits and screwdrivers
• Zinc-plated Grade 2 steel provides adequate strength and basic corrosion resistance for general use
• Box quantity of 100 reduces per-unit cost for high-volume or ongoing maintenance needs

Compatibility

Designed as a general-purpose UNC machine screw compatible with standard 1/4-20 tapped holes, hex nuts, and threaded inserts used in light industrial and trade equipment assemblies.

Installation Notes

Install with a No. 2 Phillips screwdriver or compatible power bit. Ensure the mating thread or nut is 1/4-20 UNC before driving to avoid cross-threading. Do not over-torque Grade 2 fasteners, as they have lower tensile strength than Grade 5 or Grade 8 hardware. Verify that the zinc-plated finish is appropriate for the exposure environment, as this coating is not rated for outdoor or high-moisture applications without additional protection.