Value Collection MPRI0-400750-100BX 4-40 X 3/4 in Screw 100pk

Product Description

The VALUE COLLECTION MPRI0-400750-100BX is a 4-40 UNC machine screw designed for light-duty mechanical fastening applications. It features a round head with a Phillips drive and measures 3/4 inches in length under the head. The base material is Grade 2 steel with a zinc-plated finish that provides basic corrosion resistance in dry indoor environments. This screw is sold in a box of 100 pieces, making it well suited for tradespeople and assembly technicians who need a reliable supply of standard fasteners on hand for panel work, electrical enclosures, equipment housings, and similar applications.

This fastener is appropriate for use in light mechanical assembly where a #4-40 threaded hole or nut is specified. Common applications include mounting small components inside electrical control panels, HVAC equipment enclosures, and general sheet metal or plastic sub-assemblies. The Phillips round head sits flush against the mating surface without a washer, keeping the profile low. Installers working on residential or commercial equipment will find this screw compatible with standard #4-40 tapped holes and nuts across a wide range of hardware.

Key Features

• 4-40 UNC thread form for use with standard #4-40 tapped holes and nuts
• Round head Phillips drive for easy installation with a standard Phillips screwdriver or bit
• 3/4-inch length measured under the head for consistent thread engagement
• Grade 2 steel construction provides adequate strength for light-duty fastening
• Zinc-plated finish adds basic corrosion resistance for indoor use
• Box of 100 pieces reduces per-unit cost for high-volume or repetitive assembly work

Compatibility

Designed as a standard 4-40 UNC machine screw suitable for use with any component, enclosure, or assembly that specifies a #4-40 threaded fastener with a round head and Phillips drive.

Installation Notes

Installation requires a Phillips screwdriver or bit sized for a #4 screw. Verify thread engagement depth before driving to avoid stripping the mating threads, particularly in thin sheet metal or plastic. Do not over-torque, as Grade 2 steel fasteners have lower tensile strength than Grade 5 or Grade 8 hardware. De-energize any electrical equipment before working inside panels or enclosures where these screws are being installed or removed.