S-92220A231 5/16"-24 x 1/2" ASTM A574 Alloy Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable, high-load fastening in demanding industrial environments.
• Superior corrosion resistance from the black-oxide finish, extending service life and reducing maintenance needs.
• Precise Class 3A thread fit guarantees secure, vibration-resistant connections with minimal risk of loosening.
• Low-profile socket head design allows for installation in tight spaces while providing ample torque with a 5/32" hex drive.
• Fine UNF threads (5/16"-24) offer improved adjustment accuracy and superior holding power compared to coarse threads.
• High hardness (Rockwell C39) enhances wear resistance and prevents stripping during repeated use.
• Full threading along the 1/2" length provides consistent grip and flexibility in various assembly configurations.

Professional Applications & Engineering Value

This low profile socket head cap screw is engineered to address critical challenges in precision assemblies where space constraints and reliability are paramount. The black-oxide alloy steel construction delivers excellent corrosion resistance, making it ideal for machinery, automotive, and aerospace components exposed to harsh conditions. Its 5/16"-24 UNF fine threads and Class 3A fit ensure leak-proof and vibration-resistant joints, reducing downtime in high-stress applications. The compact head design allows for seamless integration into tight tolerances without compromising on the 140,000 psi tensile strength, providing a durable solution for engineers seeking optimal performance in industrial fastening systems.

Specification Summary & Compliance

This screw adheres to ASTM A574 specifications, with precise Class 3A thread fit and UNF fine threading (5/16"-24). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for global industrial use.