Value Collection 201183PR Button Socket Cap Screw 3/8-24

Product Description

The VALUE COLLECTION 201183PR is a button socket cap screw designed for mechanical assemblies requiring a low-profile fastening solution. It features a 3/8-24 UNF thread, a 3/4-inch length under head, and a 7/32-inch hex socket drive. Manufactured from alloy steel with a black oxide coating, it delivers a hardness rating of 36-43 HRC for high-strength applications. The black oxide finish provides moderate corrosion resistance and reduces light reflection, making it a practical choice in precision machinery, tooling fixtures, and fabricated assemblies. This screw is fully threaded and meets ANSI/ASME B18.3 and ASTM F835 standards.

This fastener is suited for use in mechanical, industrial, and manufacturing environments where a flush or low-profile head is required and torque loads demand alloy steel strength. The button head profile keeps the fastener below or near flush with mating surfaces, making it common in panel assemblies, guards, enclosures, and general machine building. It is installed by machinists, millwrights, fabricators, and maintenance technicians using a 7/32-inch hex key or Allen driver. The right-hand, Class 3A thread fit ensures a precise and secure engagement with standard UNF tapped holes.

Key Features

• 3/8-24 UNF fully threaded, Class 3A thread fit for precise engagement
• Button head profile for low-profile, flush-style installations
• 7/32-inch hex socket drive compatible with standard Allen keys
• Alloy steel construction rated at 36-43 HRC hardness
• Black oxide coating for moderate corrosion resistance and reduced reflectivity
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or direct-use fastener for applications requiring a 3/8-24 UNF button socket cap screw in alloy steel with black oxide finish per ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Installation is performed using a 7/32-inch hex key or Allen driver inserted fully into the socket before applying torque to avoid rounding. Power down and de-energize any equipment before servicing fasteners on live assemblies. Ensure the mating tapped hole meets 3/8-24 UNF thread specification and is free of debris before installation. Right-hand thread direction requires clockwise rotation to tighten.