Value Collection 593554PS 4-40 X 5/16 Pan Head Phillips Screw

Product Description

The VALUE COLLECTION 593554PS is a 4-40 x 5/16 inch pan head machine screw designed for general-purpose mechanical assembly applications. Manufactured from steel with a zinc finish, this screw meets ASME B18.13a and SAE J82 standards, ensuring dimensional consistency and reliable performance in threaded fastening applications. The Phillips drive allows for efficient installation with standard hand tools or power drivers. With an internal tooth washer style and length measured under the head at 5/16 inch, this fastener is suited for light-duty metal-to-metal and metal-to-substrate joining tasks across a broad range of industries.

This machine screw is commonly used in electrical enclosures, control panels, HVAC equipment assemblies, light fixtures, and small appliance manufacturing where a 4-40 thread engagement and compact pan head profile are required. The zinc finish provides a basic level of corrosion resistance for indoor and protected environments. It is sold individually per package with a minimum order quantity of 100 pieces, making it appropriate for maintenance shops, production lines, and field service kits that require consistent, standardized hardware.

Key Features

• 4-40 UNC thread size for standard light-duty mechanical assemblies
• Pan head profile with Phillips drive for easy installation and flush-adjacent seating
• Steel construction with zinc finish for basic corrosion resistance
• Internal tooth washer style for added locking retention
• Meets ASME B18.13a and SAE J82 dimensional standards
• Length under head measured at 5/16 inch for precise fit in shallow-clearance applications

Compatibility

Designed as a standard inch-series machine screw for use in any application requiring a 4-40 threaded fastener with a pan head and Phillips drive, including electrical panels, HVAC equipment housings, and general mechanical assemblies.

Installation Notes

Installation should be performed by a qualified technician or assembler familiar with threaded fastener applications. Power down or de-energize any electrical enclosure or equipment before installing or removing fasteners in live panels. Use a properly sized Phillips screwdriver or bit to avoid cam-out and head damage. Do not over-torque; hand-tighten and verify thread engagement before applying final seating force.