Value Collection SPTCIF0-400250-100BX 4-40 Unc Screw

Product Description

The VALUE COLLECTION SPTCIF0-400250-100BX is a 4-40 UNC thread cutting screw designed for fastening into pre-drilled or punched holes in thin metal, sheet stock, and similar materials. Built from Grade 2 steel with a zinc-plated finish, this screw features a pan head profile, slotted drive, and a Type F point that cuts its own mating thread on installation. The 1/4-inch length under head suits shallow-clearance applications where a low-profile fastener is required. Sold in a box of 100, this screw is a standard production and repair fastener used across electrical panel assembly, HVAC equipment, and light mechanical fabrication work.

This screw is suited for light-duty metal fastening applications in residential and commercial settings. Electricians, HVAC technicians, and sheet metal workers commonly use 4-40 UNC thread cutting screws when securing cover panels, junction box lids, control board brackets, and similar thin-gauge components. The Type F point is engineered for use in ferrous metals, making it appropriate for steel enclosures and equipment housings. The zinc plating provides basic corrosion resistance for indoor and protected environments.

Key Features

• 4-40 UNC thread specification for compatibility with standard light-gauge metal applications
• Type F point cuts its own thread, eliminating the need for a pre-tapped hole in thin ferrous material
• Pan head profile distributes clamping load and sits flush against flat surfaces
• Slotted drive accepts a standard flat-blade screwdriver or bit
• Grade 2 steel construction with zinc-plated finish for basic corrosion resistance
• Sold in a box of 100 for production, service, and repair use

Compatibility

Designed as an OEM-style replacement and general-purpose fastener for light-gauge ferrous metal assemblies requiring 4-40 UNC thread cutting screws with a pan head and slotted drive.

Installation Notes

Installation is performed with a flat-blade screwdriver or matching bit driver. Ensure the base material is pre-drilled to the correct pilot hole diameter for a 4-40 Type F thread cutting screw before driving. Power down all electrical equipment and discharge any stored energy before replacing fasteners on live panels or control assemblies. Do not overtighten, as Grade 2 steel screws in thin sheet metal can strip the newly cut threads if excessive torque is applied.