Value Collection 201179PR Button Socket Cap Screw 3/8-24

Product Description

The VALUE COLLECTION 201179PR is a button socket cap screw designed for fastening applications that require a low-profile head with high clamping strength. Manufactured from alloy steel with a black oxide coating, this screw delivers corrosion resistance and a clean finished appearance in demanding mechanical assemblies. The 7/32 hex socket drive accepts a standard hex key for installation in confined spaces where a conventional bolt head would not fit. At 3/8-24 UNF threading with a 1/2 inch length under head, this fastener suits precision work where fine-thread engagement and controlled clamp load are required. Hardness is rated at 36-43 HRC. Machinists, millwrights, and mechanical assembly technicians are the typical installers.

This button socket cap screw is suited for use in mechanical assemblies, machine frames, fixtures, and equipment panels where a flush or recessed low-profile fastener is preferred. The fine UNF thread pitch provides greater thread engagement per inch compared to coarse UNC threading, making it well-suited for tapped holes in steel and aluminum components. It is fully threaded along the 1/2 inch shank length, maximizing thread engagement in shallow tapped holes. Typical applications include industrial machinery, precision fixtures, tooling plates, and general mechanical assembly work in manufacturing and maintenance environments.

Key Features

• Low-profile button head design for flush or recessed installations in tight spaces
• Alloy steel construction rated at 36-43 HRC for high shear and tensile strength
• Black oxide finish provides mild corrosion resistance and a uniform dark appearance
• 7/32 hex socket drive compatible with standard hex keys and ball-end drivers
• Fully threaded shank maximizes engagement in shallow tapped holes
• Conforms to ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or standard-stock fastener for mechanical assemblies requiring a 3/8-24 UNF button socket cap screw conforming to ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Installation is typically performed by machinists, millwrights, or mechanical maintenance technicians using a 7/32 hex key or socket driver. Ensure the mating tapped hole is clean and free of debris before threading. Follow equipment manufacturer torque specifications for the fastener diameter and material being joined. De-energize and lock out any equipment before performing fastener work on live machinery per applicable OSHA lockout/tagout procedures.