Value Collection MPPI0-400370-100BX 4-40 Pan Head Screw

Product Description

The VALUE COLLECTION MPPI0-400370-100BX is a 4-40 UNC machine screw with a pan head and Phillips drive, sold in a box of 100. It measures 3/8 inches in length under the head. Constructed from Grade 2 steel with a zinc finish, this screw provides reliable corrosion resistance for light-duty fastening applications. The pan head profile sits flat against the work surface with a low-profile dome, making it well suited for sheet metal, electronics enclosures, and general mechanical assemblies. Installation requires a standard Phillips screwdriver or bit. Electricians, HVAC technicians, and equipment service pros commonly stock this size for panel and equipment fastening tasks.

This screw is appropriate for use in light-gauge metal, plastic housings, and electrical enclosures where a 4-40 thread is specified. The zinc finish offers basic protection against oxidation in indoor environments. The Phillips drive style is compatible with widely available hand and power tools, reducing installation time in high-volume assembly or service work. The box quantity of 100 supports bench stock and service van inventory for technicians who routinely encounter this fastener size in HVAC controls, electrical panels, and similar equipment.

Key Features

• 4-40 UNC thread for compatibility with standard tapped holes in light-gauge assemblies
• 3/8 inch length under head for precise, specification-driven fastening depth
• Pan head profile provides a broad bearing surface and low-profile seating
• Phillips drive works with standard hand and power tools
• Grade 2 steel construction with zinc finish for corrosion resistance in indoor use
• Box of 100 units supports service stock and production assembly needs

Compatibility

Designed as a standard 4-40 UNC machine screw suitable for use in any application requiring a pan head Phillips fastener with 3/8 inch length under head in the inch measurement system.

Installation Notes

Install using a Phillips screwdriver or Phillips bit driver sized for a No. 1 or No. 2 tip as appropriate for the drive recess. Ensure mating threads are clean and properly tapped to 4-40 UNC specification before installation. Do not overtighten Grade 2 steel fasteners in thin-gauge or plastic materials, as thread stripping can occur. Follow applicable equipment manufacturer torque guidelines and relevant code requirements when used in electrical or mechanical enclosures.