Value Collection 201205PR Button Socket Cap Screw 1/2-13

Product Description

The VALUE COLLECTION 201205PR is a button socket cap screw designed for fastening applications that require a low-profile head and reliable clamping strength. Sized at 1/2-13 x 1-1/4 inches with a fully threaded shank, this screw is manufactured from alloy steel and finished with a black oxide coating for moderate corrosion resistance and a clean, matte appearance. It accepts a 5/16-inch hex socket drive and meets ANSI/ASME B18.3 and ASTM F835 standards. With a hardness rating of 36-43 HRC, it delivers the load-bearing performance required in mechanical assemblies, machinery, and structural fixtures.

This fastener is well suited for industrial maintenance, machine building, and equipment assembly where a flush or near-flush head profile is needed to clear adjacent components. The UNC thread form and Class 3A thread fit make it compatible with standard tapped holes in steel, aluminum, and other common structural materials. Typical installation environments include manufacturing equipment, fixtures, frames, and general mechanical assemblies handled by machinists, millwrights, and maintenance technicians.

Key Features

• Button head profile for low-profile fastening where clearance is limited
• Alloy steel construction with 36-43 HRC hardness for high-strength applications
• Black oxide finish provides moderate corrosion resistance and reduces light reflection
• 5/16-inch hex socket drive for torque application with standard hex keys or socket drivers
• Fully threaded shank maximizes thread engagement in shallow or thin material
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard UNC Class 3A replacement or new-installation fastener for any tapped 1/2-13 hole requiring a button head cap screw per ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Installation is performed with a 5/16-inch hex key or socket driver. Power down or de-energize any equipment before fastener replacement or removal. Ensure the mating tapped hole is clean and free of debris before driving. Do not exceed the mechanical limits of the alloy steel by over-torquing, and verify thread engagement depth meets design requirements before final assembly.