Value Collection 93050 Button Cap Screw 4-40 1/4 in 50-pack

Product Description

The VALUE COLLECTION 93050 is a 4-40 button socket cap screw designed for precision fastening in mechanical assemblies, enclosures, and equipment panels. The button head profile provides a low-profile, rounded top surface that resists snagging and suits applications where clearance above the fastener is limited. Driven by a 1/16-inch hex socket, this screw is manufactured from 18-8 stainless steel with a bright, uncoated finish, offering corrosion resistance suitable for general industrial and light marine environments. Each package contains 50 pieces, making it practical for bench-stock replenishment or small-volume projects.

This screw is suited for light- to medium-duty fastening tasks in residential equipment, commercial control panels, instrument enclosures, and fabricated assemblies where a 4-40 UNC thread is specified. The 1/4-inch length under head is appropriate for thin-material stack-ups and sheet metal applications. Installers working in HVAC controls, electrical enclosures, and plumbing equipment panels commonly use 4-40 hardware at this length when securing lightweight components and brackets.

Key Features

• Button head style provides a low-profile, rounded seating surface that reduces snag risk in tight assemblies
• 18-8 stainless steel construction offers corrosion resistance for indoor and mildly corrosive environments
• 1/16-inch hex socket drive for standard hex key or bit-driver installation
• 4-40 UNC right-hand thread with 3A thread fit class for consistent engagement and reliable clamp load
• Bright, uncoated finish suitable for applications where chemical coatings are undesirable
• Meets ANSI/ASME B18.3 and ASTM F837 fastener standards
• Packaged in quantities of 50 for efficient bench-stock use

Compatibility

Designed as a standard 4-40 UNC button socket cap screw for use in any application calling for a 4-40 thread, 1/4-inch length under head, hex socket drive, and 18-8 stainless steel material per ANSI/ASME B18.3 and ASTM F837 specifications.

Installation Notes

Install with a 1/16-inch hex key or matching socket bit driver; do not use an oversized or worn driver, as this can strip the socket recess. Ensure mating threads are clean and free of debris before installation. De-energize any electrical equipment and follow applicable lockout/tagout procedures before working in panels or enclosures where these fasteners are used. Torque to the value specified in the equipment manufacturer's assembly documentation.