Value Collection 201105PR Button Socket Cap Screw 1/4-28

Product Description

The VALUE COLLECTION 201105PR is a button socket cap screw designed for applications requiring a low-profile, high-strength fastener. It features a 1/4-28 UNF thread at 3/8 inch length under head, a 5/32 inch hex socket drive, and is manufactured from alloy steel with a black oxide finish. With a hardness rating of 36-43 HRC, this screw delivers reliable clamping force in demanding assemblies. It is fully threaded and conforms to ANSI/ASME B18.3 and ASTM F835 standards. Machinists, maintenance technicians, and fabricators working with precision assemblies and tight clearances commonly specify this fastener type.

This button socket cap screw is suited for residential and commercial fabrication, machine assembly, tooling fixtures, and general industrial maintenance. The low-profile button head reduces interference in recessed or flush-mount installations where a standard hex cap screw head would protrude. The black oxide coating provides mild corrosion resistance and a consistent matte appearance. This screw is sold individually per package with a minimum order quantity of 100 pieces, making it appropriate for shop stock and production line replenishment.

Key Features

• 1/4-28 UNF right-hand thread with Class 3A thread fit for precision engagement
• 3/8 inch length under head, fully threaded
• 5/32 inch hex socket drive for use with standard Allen or hex key tooling
• Alloy steel construction, hardness 36-43 HRC for high tensile strength
• Black oxide coating for mild corrosion resistance and reduced light reflection
• Conforms to ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard UNF button socket cap screw suitable for threaded assemblies requiring a 1/4-28 thread form and a low-profile hex socket head per ANSI/ASME B18.3 specifications.

Installation Notes

Install using a calibrated 5/32 inch hex key or Allen driver to avoid rounding the socket drive. Ensure mating threads are clean and free of debris before installation. Power down or de-energize any equipment before fastener service on live assemblies. Torque to the assembly specification provided by the equipment manufacturer for 1/4-28 alloy steel fasteners.