Value Collection -40863-1 Button Socket Cap Screw 50 Pack

Product Description

The VALUE COLLECTION -40863-1 is a button socket cap screw designed for applications requiring a low-profile head with high clamping strength. Sized at 8-32 x 3/4 inch and fully threaded, it features a 3/32 inch hex socket drive and is manufactured from alloy steel with a black oxide finish. The black oxide coating provides mild corrosion resistance and reduces light reflection, making it a common choice in machine assemblies, enclosures, and industrial equipment. Hardness is rated at 36 to 43 HRC, meeting the strength demands of close-tolerance fastening work. This fastener conforms to ANSI/ASME B18.3 and ASTM F835 standards.

This screw suits residential and commercial mechanical assemblies where a flush or recessed fastener profile is required. The button head style distributes clamping load across a wider bearing surface compared to a standard socket cap screw, making it well suited for attaching panels, brackets, and thin-stock components. Machinists, millwrights, and maintenance technicians commonly specify this fastener in light to medium-duty structural and mechanical applications. Each package contains 50 pieces.

Key Features

• Button head profile reduces protrusion and provides broad bearing surface
• Fully threaded 8-32 UNC thread form with Class 3A fit for precise engagement
• 3/32 inch hex socket drive compatible with standard ball-end hex keys and drivers
• Alloy steel construction rated 36 to 43 HRC for high-load fastening
• Black oxide finish for mild corrosion resistance and low-glare appearance
• Conforms to ANSI/ASME B18.3 and ASTM F835 standards

Compatibility

Designed as a standard UNC 8-32 button socket cap screw suitable for tapped holes conforming to ANSI/ASME B18.3 thread and dimensional specifications in general mechanical assemblies.

Installation Notes

Installation requires a 3/32 inch hex key or socket bit driver; verify the drive tool is fully seated before applying torque to avoid rounding the socket. Ensure the mating tapped hole is clean and free of debris before threading. Follow applicable machine guarding and lockout/tagout procedures when installing or replacing fasteners in powered equipment. Do not exceed the recommended preload for the 8-32 thread class to avoid stripping the tapped hole or fastener head.