Value Collection 0403MSP 4-40 Pan Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0403MSP is a 4-40 pan head machine screw with a slotted drive, manufactured from steel with a zinc finish. Sized at 3/16 inches length under head, this fastener follows ASME B18.6.3 and SAE J82 standards, making it a reliable choice for light-duty mechanical assembly work. The zinc finish provides basic corrosion resistance for indoor and general-purpose applications. Electricians, HVAC technicians, and mechanical assemblers commonly use hardware of this type when securing panels, junction boxes, enclosures, and control components where a small-diameter, fine-thread fastener is required.

This screw is suited for light sheet metal, electrical enclosures, control panels, and similar assemblies that call for a 4-40 thread pattern. The pan head profile sits low and distributes clamping load across a wider bearing surface than a flat head, making it a common choice for through-hole or clearance-fit applications in thin materials. Minimum order quantity is 100 pieces per order, with a package quantity of 1 unit.

Key Features

• 4-40 unified fine thread for reliable engagement in tapped holes and threaded inserts
• Pan head profile provides a broad bearing surface and low-profile seating
• Slotted drive compatible with standard flat-blade screwdrivers
• Zinc finish offers basic corrosion resistance for indoor and general-purpose use
• Meets ASME B18.6.3 and SAE J82 fastener standards
• No washer included; sold without washer

Compatibility

Designed as an OEM-style replacement or general-use fastener for applications requiring a 4-40 thread, 3/16-inch length under head, pan head slotted machine screw in inch-measurement systems.

Installation Notes

Installation is typically performed by electricians, HVAC technicians, or mechanical assemblers using a standard flat-blade screwdriver sized for a number 4 screw. Ensure the mating tapped hole or threaded insert matches the 4-40 thread specification before driving the screw. Do not overtighten, as small-diameter machine screws in thin materials are susceptible to thread stripping. Follow applicable NEC or equipment manufacturer guidelines when securing electrical enclosure hardware.