Value Collection MSRI0-501250-100BX 5-40 Machine Screw 100pk

Product Description

The VALUE COLLECTION MSRI0-501250-100BX is a 5-40 UNC machine screw with a round head and slotted drive, sold in a box of 100. Manufactured from Grade 2 alloy steel with a zinc-plated finish for corrosion resistance, this screw measures 1-1/4 inches in length under head. The zinc coating provides a layer of protection suitable for general-purpose indoor mechanical assemblies. This fastener is used by electricians, HVAC technicians, plumbers, and general maintenance trades wherever a small-diameter UNC machine screw is required for panel, bracket, or component attachment.

This screw is suited for light-duty mechanical and electrical assembly applications in residential and commercial settings. The 5-40 UNC thread is a common small-fastener standard found in electrical enclosures, control panels, terminal boards, and general equipment assembly. Sold in a quantity of 100 per package, it is appropriate for both service-call kits and shop stock replenishment.

Key Features

• 5-40 UNC thread for broad compatibility with standard tapped holes and threaded inserts
• Round head profile provides a low-profile, finished appearance on panel surfaces
• Slotted drive accepts standard flat-blade screwdrivers
• Grade 2 alloy steel construction for reliable tensile strength in general-purpose fastening
• Zinc-plated finish adds corrosion resistance for typical indoor environments
• Box of 100 supports bulk stocking for service fleets and shop inventories

Compatibility

Designed as a general-purpose 5-40 UNC machine screw suitable for electrical enclosures, control panels, terminal boards, and light mechanical assemblies requiring a round-head slotted fastener.

Installation Notes

Installation is performed by hand or with a standard flat-blade screwdriver into a pre-tapped or threaded hole. Always de-energize electrical equipment before installing or removing fasteners in or near live panels, in accordance with NFPA 70E lockout/tagout requirements. Do not overtighten small-diameter screws into soft materials or threaded inserts, as thread stripping can occur. Use the correct driver tip width to avoid cam-out and head damage.