Value Collection 201181PR Button Socket Cap Screw 3/8-24

Product Description

The VALUE COLLECTION 201181PR is a button socket cap screw designed for fastening applications where a low-profile head is required. It features a 3/8-24 UNF thread and a 5/8-inch length under the head, making it a practical choice for machine assemblies, fixtures, and structural joints where clearance is limited. The screw is manufactured from alloy steel with a black oxide coating for moderate corrosion resistance and reduced glare in finished assemblies. Drive engagement is achieved through a 7/32-inch hex socket. Hardness is rated at 36 to 43 HRC, meeting the requirements of ANSI/ASME B18.3 and ASTM F835.

This fastener is well suited for mechanical and industrial applications including machine frames, tooling plates, enclosures, and fabricated assemblies where a flush or near-flush head profile reduces snagging or interference. The fine 3/8-24 UNF thread pitch provides stronger thread engagement per unit length compared to coarse thread equivalents, making it a common choice in precision mechanical assemblies. Installation is performed by machinists, maintenance technicians, and fabricators working with steel, aluminum, or similar materials.

Key Features

• Low-profile button head reduces interference in tight-clearance assemblies
• 3/8-24 UNF fine thread provides strong clamping force and precise adjustment
• Alloy steel construction with 36 to 43 HRC hardness for high-strength fastening
• Black oxide coating offers moderate corrosion resistance and a matte finish
• 7/32-inch hex socket drive for standard hex key installation
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as a standard-dimension UNF button socket cap screw conforming to ANSI/ASME B18.3 and ASTM F835, suitable for use in any application requiring a 3/8-24 fine thread fastener with a button head profile.

Installation Notes

Installation is performed using a 7/32-inch hex key or hex socket driver. Ensure mating threads are clean and free of debris before installation. Apply thread lubricant or thread-locking compound as appropriate for the application and load requirements. Follow applicable mechanical assembly standards and torque specifications for 3/8-24 alloy steel fasteners as defined by the governing project or equipment specification.