Value Collection 201040PR Button Socket Cap Screw 8-32

Product Description

The VALUE COLLECTION 201040PR is a button socket cap screw designed for applications requiring a low-profile fastening solution with high strength. Sized at 8-32 UNC thread by 5/8 inch length under the head, this screw is fully threaded and driven with a 3/32 inch hex socket. It is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. Hardness is rated at 36 to 43 HRC, meeting ANSI/ASME B18.3 and ASTM F835 standards. Thread fit is Class 3A, right-hand direction. Head height is 0.087 inch.

This fastener is commonly used in machine assembly, tooling fixtures, enclosures, and equipment panels where a rounded button-head profile is required to clear surrounding components or minimize snag points. It is appropriate for both light industrial and commercial applications. Typical installers include machinists, millwrights, maintenance technicians, and mechanical assemblers. The black oxide finish makes it suitable where a low-gloss, dark appearance is preferred without the cost of plating.

Key Features

• Button head profile for low-profile, flush-friendly fastening in tight clearance areas
• Alloy steel construction rated 36 to 43 HRC for high tensile strength
• Black oxide coating for moderate corrosion resistance and reduced surface reflectivity
• Fully threaded 8-32 UNC Class 3A right-hand thread for precise fit
• 3/32 inch hex socket drive for standard hex key installation
• Meets ANSI/ASME B18.3 and ASTM F835 dimensional and mechanical standards

Compatibility

Designed as a standard replacement or new-installation fastener for applications requiring an 8-32 UNC button socket cap screw conforming to ANSI/ASME B18.3 and ASTM F835 specifications.

Installation Notes

Install using a 3/32 inch hex key or hex socket bit driver. Ensure mating threads are clean and free of debris before installation. Do not exceed the rated hardness class of the mating material to avoid thread stripping. Black oxide finish offers limited corrosion protection and is not recommended for outdoor or high-moisture environments without an additional sealant or lubricant.