Value Collection 201173PR Button Socket Cap Screw 3/8-16

Product Description

The VALUE COLLECTION 201173PR is a button socket cap screw designed for applications requiring a low-profile fastener with a smooth, rounded head. Manufactured from alloy steel with a black oxide coating, this screw delivers strength and corrosion resistance in a compact form factor. It features a 3/8-16 UNC thread, measures 7/8 inches under the head, and accepts a 7/32-inch hex socket drive. Hardness is rated at 36-43 HRC, meeting ANSI/ASME B18.3 and ASTM F835 standards. Fully threaded with a right-hand thread direction and a Class 3A thread fit, this fastener suits precision mechanical assemblies where close tolerances matter.

This button socket cap screw is commonly used in machinery, equipment panels, jigs, fixtures, and structural assemblies where head clearance is limited and a flush or near-flush profile is required. The black oxide finish reduces light reflection and provides a base layer of corrosion protection, making it suitable for indoor mechanical and industrial environments. It is a general-purpose fastener installed by machinists, millwrights, and maintenance technicians across manufacturing and fabrication settings.

Key Features

• Low-profile button head design for clearance-restricted applications
• Alloy steel construction with 36-43 HRC hardness rating
• Black oxide coating for corrosion resistance and reduced glare
• Fully threaded 3/8-16 UNC right-hand thread, Class 3A fit
• 7/32-inch hex socket drive for standard Allen key or hex bit installation
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard 3/8-16 UNC button socket cap screw suitable for use in tapped holes and mechanical assemblies conforming to ANSI/ASME B18.3 specifications.

Installation Notes

Install using a 7/32-inch hex key or socket bit driver. Ensure the mating tapped hole is clean and free of debris before threading. Apply appropriate torque per the assembly specification for a Class 3A thread fit in alloy steel. Do not exceed rated torque to avoid galling or thread damage in softer mating materials.