Value Collection 201010PR Button Socket Cap Screw

Product Description

The VALUE COLLECTION 201010PR is a button socket cap screw designed for precision fastening applications where a low-profile head is required. It features a hex socket drive and a fully threaded shank in a 2-56 UNC thread size with a 1/4-inch length under head. Manufactured from alloy steel with a black oxide coating, this screw meets ANSI/ASME B18.3 and ASTM F835 standards. Hardness is rated at 36-43 HRC, giving it reliable clamping strength in metal-to-metal assemblies. Machinists, tool and die technicians, and precision assembly professionals commonly install this type of fastener.

This screw is suited for light-duty mechanical assemblies, instrument panels, jigs, fixtures, and equipment enclosures where head clearance is limited. The button head profile distributes clamping load over a wider bearing surface than a standard socket head cap screw, making it appropriate for softer substrates or thinner material faces. Right-hand thread direction and a 3A thread fit class ensure consistent engagement in standard tapped holes.

Key Features

• Button head, hex socket drive for low-profile, high-torque installation
• Fully threaded 2-56 UNC right-hand thread, 3A fit class
• Alloy steel construction with 36-43 HRC hardness rating
• Black oxide coating for mild corrosion resistance and reduced light reflection
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards
• Head height of 0.046 inches for clearance-sensitive applications

Compatibility

Designed as a standard replacement or new-installation fastener for any tapped 2-56 UNC threaded hole requiring a button head socket cap screw per ANSI/ASME B18.3 specifications.

Installation Notes

Installation requires a correctly sized hex key or socket bit matched to the drive recess. Ensure the tapped hole is clean and free of debris before threading to avoid galling the alloy steel threads. Power down or de-energize any assembly before fastener work on electrical or control enclosures. Do not exceed the recommended seating torque for a 2-56 thread class as specified in your applicable engineering standard.