Value Collection W98256PS 4-40 X 5/8 Pan Head Phillips Screw

Product Description

The VALUE COLLECTION W98256PS is a 4-40 x 5/8 inch pan head machine screw with a Phillips drive, manufactured from 18-8 stainless steel. It conforms to ASME B18.13, the standard governing slotted and recessed pan head screws. The pan head profile provides a wide bearing surface and low-profile appearance, while the Phillips recess allows for positive driver engagement. The 18-8 stainless steel construction delivers corrosion resistance suitable for both indoor and outdoor applications. Length is measured under the head at 5/8 inch. This fastener is sold as a minimum order quantity of 100 pieces per package, making it appropriate for production, assembly, and maintenance stockrooms.

This screw is used in light-duty mechanical assemblies, electrical enclosures, HVAC control panels, and general sheet metal or plastic component fastening where a small-diameter, corrosion-resistant fastener is required. The 4-40 thread size is common in electronic and instrumentation assemblies. Technicians and assemblers working on control boards, junction boxes, and equipment panels will recognize this as a standard fastener for securing covers, brackets, and small components. It is appropriate for both original equipment assembly and field service repair work.

Key Features

• 18-8 stainless steel construction for corrosion resistance in wet or humid environments
• Pan head profile with wide bearing surface and low-profile seating
• Phillips drive for positive engagement with standard and power drivers
• Conforms to ASME B18.13 fastener standard
• External tooth washer style for added holding capability
• Length under head: 5/8 inch, measured per ASME B18.13 convention

Compatibility

Designed as a standard 4-40 machine screw compatible with any tapped 4-40 threaded hole or nut conforming to Unified National Coarse thread specifications in the inch measurement system.

Installation Notes

Installation requires a Phillips screwdriver or bit driver sized for a number 4 screw head. Verify the mating thread is tapped to 4-40 UNC before installation to avoid cross-threading. Power down any electrical equipment before fastening or removing screws in control panels or enclosures. Do not overtighten stainless steel fasteners in stainless or aluminum tapped holes, as galling can occur — apply consistent, controlled torque using hand tools when possible.