Value Collection 701024P Button Socket Cap Screw 4-40

Product Description

The VALUE COLLECTION 701024P is a button head socket cap screw designed for applications where a low-profile head and flush-clearance seating are required. Measuring 3/16 inch in length under the head with a 4-40 UNC coarse thread, this fastener is fully threaded from head to tip. It is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and a matte black appearance. Driven by a 1/16-inch hex key socket, the button head profile distributes clamping load over a wider bearing surface than a standard cap screw. Manufactured to ASME, ANSI B18.3, and ASTM F835 standards, this screw is suited for precision assembly work in industrial, mechanical, and instrumentation applications.

This fastener is commonly used in light-duty clamping, panel assembly, machine guards, and equipment enclosures where head clearance is limited and a clean finished look is needed. The small 4-40 thread size and compact 3/16-inch length make it well suited for electronics enclosures, small fixtures, and precision mechanical assemblies. It is installed by machinists, mechanical assemblers, and field technicians using standard inch hex keys. The black oxide finish blends with dark-anodized or black-coated components commonly found in instrumentation and light fabrication work.

Key Features

• Button head profile for low-profile, wide-bearing-surface seating
• 4-40 UNC coarse thread, fully threaded 3/16 inch under head
• Alloy steel construction for strength in compact fastener applications
• Black oxide finish for mild corrosion resistance and matte appearance
• 1/16-inch hex socket drive compatible with standard inch hex keys
• Meets ASME, ANSI B18.3, and ASTM F835 dimensional and performance standards

Compatibility

Designed as a standard inch-series button socket cap screw for use in any application requiring a 4-40 UNC thread and 3/16-inch fastener length under the head.

Installation Notes

Install using a 1/16-inch hex key or ball-end hex driver. Ensure the mating threaded hole is tapped to 4-40 UNC specification before installation. Do not exceed the designed drive torque for this fastener size, as over-torquing small-diameter alloy screws can cause thread stripping or head rounding. Confirm thread engagement depth is sufficient in the receiving material prior to final assembly.