Value Collection MPRI02500870-100BX Machine Screw 1/4-20

Product Description

The VALUE COLLECTION MPRI02500870-100BX is a 1/4-20 x 7/8-inch round head Phillips machine screw sold in a box of 100. Manufactured from Grade 2 steel with a zinc-plated finish, this fastener provides reliable corrosion resistance for general-purpose assembly applications. The round head profile offers a low-profile, domed appearance suited for through-hole applications where a flush finish is not required. The Phillips drive provides positive engagement with standard hand and power tools. Thread size is 1/4-20 UNC (Unified National Coarse), and length is measured under the head at 7/8 inches.

These machine screws are used across a wide range of light industrial, HVAC, electrical panel, and equipment assembly applications. The 1/4-20 UNC thread is one of the most common coarse-thread sizes in inch-standard fastener systems, making this screw appropriate for general metal-to-metal fastening, enclosure assembly, and equipment mounting where Grade 2 steel meets the structural requirement. The zinc plating provides basic protection against oxidation in dry or mildly humid indoor environments. Sold as a box of 100 units.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes
• 7/8-inch length measured under head for consistent grip-length reference
• Round head with Phillips drive for use with standard Phillips screwdrivers and bits
• Grade 2 steel construction meets general-purpose mechanical fastening requirements
• Zinc-plated finish for basic corrosion resistance in indoor environments
• Box of 100 screws for shop stock, service vans, and production use

Compatibility

Designed for use in any standard 1/4-20 UNC tapped hole or through-hole application requiring a round head Phillips fastener in inch-standard hardware.

Installation Notes

Install using a standard Phillips No. 2 screwdriver or power driver bit. Ensure the mating thread is clean and free of debris before driving. Do not overtighten Grade 2 steel fasteners in thin-gauge sheet metal, as the lower tensile rating relative to Grade 5 or Grade 8 hardware makes them susceptible to thread stripping under excessive torque. Follow applicable equipment manufacturer guidelines or relevant mechanical codes when used in structural or load-bearing assemblies.