Value Collection MSCI0-500250-100BX 5-40 X 1/4 in Screw

Product Description

The VALUE COLLECTION MSCI0-500250-100BX is a 5-40 UNC machine screw designed for general fastening applications in light-duty assemblies. The fillister head offers a taller profile and deeper slot than a standard pan head, providing increased driver engagement and higher torque capacity in confined or recessed clearance areas. Manufactured from Grade 2 steel with a zinc-plated finish, this screw delivers adequate corrosion resistance for indoor and dry-environment use. Sold in a box of 100, this fastener is a staple for maintenance technicians, electricians, and mechanical assemblers working with standard inch-thread hardware.

This screw is suited for use in light mechanical assemblies, electrical enclosures, control panels, and equipment housings where a 5-40 UNC thread form is required. The 0.25-inch length is measured under the head, making it appropriate for thin panel stock and shallow-depth tapped holes. The slotted drive is compatible with standard flat-head screwdrivers and is common in legacy equipment and panel work where Phillips or Torx drives are not specified.

Key Features

• 5-40 UNC thread provides a fine, secure thread engagement for small-diameter fastening
• Fillister head profile delivers deeper slot engagement and higher clamping force than pan head alternatives
• Slotted drive is compatible with standard flat-blade screwdrivers
• Grade 2 steel construction meets general-purpose strength requirements for light assemblies
• Zinc-plated finish provides baseline corrosion resistance in dry indoor environments
• Sold in a box of 100 for bench stock and service-truck inventory replenishment

Compatibility

Designed as a standard 5-40 UNC inch-series machine screw for use in any application calling for a fillister head, slotted drive fastener in that thread size and 0.25-inch under-head length.

Installation Notes

Install using a flat-blade screwdriver sized to the slot to avoid cam-out and head damage. Ensure the mating tapped hole is clean and free of debris before threading. Do not overtighten in plastic or thin-panel applications, as Grade 2 steel will shear or strip softer base materials. Power off and de-energize any electrical panel or enclosure before working inside.