Value Collection 701015PR Button Socket Cap Screw 2-56

Product Description

The VALUE COLLECTION 701015PR is a button socket cap screw designed for precision fastening applications requiring a low-profile head and secure hex socket drive. Sized at 2-56 UNC with a 3/4-inch length under head, this fastener is fully threaded and manufactured from alloy steel with a black oxide coating. Hardness is rated at 36 to 43 HRC, making it suitable for moderate-to-high-strength fastening in tight assemblies. Conforming to ANSI/ASME B18.3 and ASTM F835 standards, it is a reliable choice for engineers, machinists, and maintenance technicians working with small-diameter threaded assemblies.

This screw is used in applications where a standard socket head cap screw would protrude too far or where head clearance is limited. The button head profile reduces interference in recessed or close-tolerance assemblies. Common install scenarios include light-duty mechanical assemblies, instrumentation panels, enclosures, and fixtures where a flush or near-flush fastener surface is required. The black oxide finish provides mild corrosion resistance and reduces light reflection in optical or electronic environments. Minimum order quantity is 100 pieces per order.

Key Features

• Button head, low-profile design for clearance-critical assemblies
• Hex socket (Allen) drive for precise torque application in confined spaces
• Fully threaded 2-56 UNC thread form with Class 3A thread fit
• Alloy steel construction rated 36 to 43 HRC hardness
• Black oxide coating for mild corrosion resistance and reduced reflectivity
• Conforms to ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard 2-56 UNC button socket cap screw for use in any application or assembly that accepts ANSI/ASME B18.3 compliant fasteners of this thread size and length.

Installation Notes

Installation requires a hex socket (Allen key) driver sized for the 2-56 button head specification. Ensure mating threads are clean and free of debris before driving. Apply fastener only to tapped holes conforming to 2-56 UNC Class 3A or compatible thread standards. Avoid over-torquing, as the small diameter and button head style have lower torque capacity compared to standard socket head cap screws of the same thread size.