Value Collection 701215PR Button Socket Cap Screw 1/2-20

Product Description

The VALUE COLLECTION 701215PR is a button socket cap screw designed for mechanical assemblies where a low-profile fastening solution is required. Built from alloy steel with a black oxide coating, this screw offers solid corrosion resistance and a clean finished appearance in demanding applications. It features a 1/2-20 UNF thread, a 2-inch length under head, and a 5/16-inch hex socket drive. Hardness is rated at 36-43 HRC, meeting the mechanical requirements of ANSI/ASME B18.3 and ASTM F835. The fully threaded shank and Class 3A thread fit ensure consistent engagement and reliable clamping force in precision assemblies.

This fastener is suited for use in machinery, equipment enclosures, fixtures, and structural assemblies where a standard hex socket cap screw would protrude too far. The button head profile reduces snag points in tight clearance areas. Machinists, millwrights, maintenance technicians, and fabricators commonly specify this style when low-profile clamping is a design requirement. Its black oxide finish also makes it a practical choice in applications where surface aesthetics or mild corrosion protection matter without adding significant dimensional change.

Key Features

• Button head profile provides a low-profile alternative to standard socket cap screws
• Alloy steel construction with 36-43 HRC hardness for high-load applications
• Black oxide coating provides mild corrosion resistance and a matte finish
• 5/16-inch hex socket drive for standard Allen key or hex bit installation
• Fully threaded 1/2-20 UNF Class 3A right-hand thread for precise fit
• Meets ANSI/ASME B18.3 and ASTM F835 dimensional and mechanical standards

Compatibility

Designed as an OEM-style replacement or standard fitment fastener for assemblies specifying 1/2-20 UNF button socket cap screws per ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Install using a 5/16-inch hex key or hex socket bit. Ensure mating threads are clean and free of debris before installation. Verify thread engagement depth meets design specifications for the assembly. Do not exceed the torque capacity of the button head style, as the head-to-shank interface has lower torque resistance than a standard socket cap screw of the same thread size.