Value Collection 0416MSP 4-40x1 Pan Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0416MSP is a 4-40 x 1 inch pan head machine screw with a slotted drive, manufactured from steel with a zinc finish. This fastener follows ASME B18.6.3 and SAE J82 standards, making it a reliable choice for general-purpose mechanical assemblies. The pan head profile provides a low-profile, wide bearing surface suitable for sheet metal, light structural, and equipment enclosure applications. The zinc coating offers basic corrosion resistance in dry indoor environments. Length is measured under the head, giving a full 1 inch of thread engagement depth when fully seated.

This screw is used in light-duty mechanical and electrical assembly work, including control panel fabrication, enclosure mounting, and small equipment construction. The 4-40 thread size is commonly found in instrumentation, electronic hardware, and HVAC control board mounting. It is appropriate for residential and commercial applications where a small-diameter, unified inch-thread fastener is required. Installers typically use these in quantity for repetitive fastening tasks in panel shops, field service, and bench assembly.

Key Features

• 4-40 unified inch thread for standard small-fastener applications
• Pan head profile with wide bearing surface and low profile
• Slotted drive compatible with standard flat-blade screwdrivers
• Steel construction with zinc finish for basic corrosion resistance
• Meets ASME B18.6.3 and SAE J82 dimensional and material standards
• Length measured under head for accurate thread engagement planning

Compatibility

Designed as a standard 4-40 x 1 inch pan head slotted machine screw per ASME B18.6.3, compatible with any application requiring a unified inch-thread 4-40 fastener in this head style and length.

Installation Notes

Installation requires a flat-blade screwdriver sized to the slotted head. Ensure the mating threaded hole or nut is tapped to 4-40 specification before driving. Do not overtighten, as the small thread diameter is susceptible to stripping under excessive torque. Power down any electrical equipment before fastening hardware within live enclosures.