Value Collection 701217PR Button Socket Cap Screw 1/2-20

Product Description

The VALUE COLLECTION 701217PR is a button socket cap screw designed for applications requiring a low-profile fastener with a high-strength alloy steel construction. Sized at 1/2-20 UNF thread with a 2-1/2 inch length under head, it accepts a 5/16 inch hex socket drive and is finished with a black oxide coating for mild corrosion resistance. Hardness is rated at 36-43 HRC, conforming to ANSI/ASME B18.3 and ASTM F835 standards. This fastener is installed by machinists, millwrights, fabricators, and maintenance technicians across industrial and mechanical assembly environments.

The 701217PR suits applications where a domed, low-profile head is needed to clear adjacent components or reduce snag points on moving assemblies. Common uses include machinery guards, jigs and fixtures, structural brackets, and equipment panels. The black oxide finish blends into ferrous assemblies and provides a degree of lubricity during installation. This screw is fully threaded along the 2-1/2 inch shank, making it suitable for through-hole and threaded insert applications alike.

Key Features

• 1/2-20 UNF thread form for fine-pitch engagement and vibration resistance
• 2-1/2 inch length under head, fully threaded shank
• Alloy steel construction with 36-43 HRC hardness per ASTM F835
• Black oxide coating for mild corrosion resistance and reduced surface glare
• 5/16 inch hex socket drive for standard Allen key or socket bit installation
• Conforms to ANSI/ASME B18.3 dimensional standards

Compatibility

Designed as a standard UNF button socket cap screw suitable for use in any application requiring a 1/2-20 fine-thread fastener with a button head profile per ANSI/ASME B18.3.

Installation Notes

Installation is performed with a 5/16 inch hex key or socket bit driver. Ensure mating threads are clean and free of debris before driving the fastener. Verify thread engagement depth is adequate for the load rating of the assembly. Follow applicable torque specifications from the equipment manufacturer or relevant ASME standards, as no torque value is supplied with this fastener.