Value Collection 701035PR Button Socket Cap Screw 5-40

Product Description

The VALUE COLLECTION 701035PR is a button socket cap screw designed for applications requiring a low-profile head and high clamping strength. Sized at 5-40 UNC with a 3/8-inch length under the head, this fastener is fully threaded and driven by a 5/64-inch hex socket key. It is manufactured from alloy steel with a black oxide coating that provides mild corrosion resistance and reduces light reflection. Hardness is rated at 36-43 HRC, meeting ANSI/ASME B18.3 and ASTM F835 standards. Machinists, fabricators, and assembly technicians install this screw where a flush or recessed head profile is required in tight clearance situations.

This screw is suited for light machinery, electronics enclosures, jigs, fixtures, and precision assemblies where a standard hex socket cap head would protrude excessively. The black oxide finish makes it a common choice in applications where appearance and minimal reflectivity matter alongside mechanical performance. It installs in any setting where a right-hand threaded 5-40 UNC tapped hole is present. Sold individually with a minimum order quantity of 100 pieces, making it appropriate for production runs or maintenance stock replenishment.

Key Features

• Button head profile provides low clearance and a clean finished appearance
• 5/64-inch hex socket drive for use with standard Allen keys or hex bits
• Alloy steel construction with 36-43 HRC hardness for reliable clamping load
• Black oxide coating reduces surface reflectivity and offers mild corrosion resistance
• Fully threaded 5-40 UNC right-hand thread, Class 3A fit for precise engagement
• Meets ANSI/ASME B18.3 and ASTM F835 dimensional and mechanical standards

Compatibility

Designed as a direct-fit replacement or production fastener for any application requiring a 5-40 UNC fully threaded button socket cap screw with a 3/8-inch length under the head.

Installation Notes

Installation is performed by machinists, assemblers, or maintenance technicians using a 5/64-inch hex key or hex socket bit. Ensure the mating tapped hole is clean, properly formed to 5-40 UNC Class 3A specifications, and free of debris before driving. Do not exceed the recommended seating torque for the thread size and material combination — consult applicable fastener torque tables. Black oxide is a conversion coating only and is not a substitute for plating or paint in high-moisture environments.