S-92423A157 3/8"-16 x 1 1/4" ASME B18.3, NAS1352N6-20, SAE AMS5731, SAE AMS5737 High-Strength A286 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 160,000 psi ensures reliable performance under extreme mechanical loads, reducing the risk of fastener failure in critical applications.
• Superior corrosion resistance from the passivated A286 stainless steel finish prolongs service life in harsh environments, minimizing maintenance and replacement costs.
• High hardness (Rockwell C33) provides excellent wear resistance and durability, maintaining thread integrity through repeated assembly and disassembly cycles.
• Precision Class 3A thread fit guarantees secure, vibration-resistant connections, enhancing assembly reliability and reducing loosening in dynamic operations.
• Standard hex socket drive (5/16") allows for easy installation and high torque application with common tools, streamlining maintenance and assembly processes.
• Full threading and coarse UNRC thread ensures quick engagement and strong holding power across the entire length, ideal for high-stress industrial fastening.
• Compliance with ASME, NAS, and SAE standards assures consistent quality and interoperability, meeting rigorous aerospace and industrial specifications.

Professional Applications & Engineering Value

This 3/8"-16 A286 stainless steel socket head cap screw is engineered to address demanding industrial challenges, such as vibration-induced loosening and corrosion in high-stress environments. The passivated finish on the A286 material provides robust protection against oxidation and chemical exposure, making it suitable for aerospace, automotive, and heavy machinery applications where reliability is critical. Its fully threaded design and coarse UNRC thread enable rapid installation and superior clamping force, reducing assembly time while maintaining joint integrity. With a high tensile strength of 160,000 psi and Class 3A thread fit, it ensures precise, secure fastening that withstands dynamic loads and thermal cycling, minimizing downtime and enhancing operational safety in professional settings.

Specification Summary & Compliance

This socket head cap screw features a Class 3A thread fit with UNRC coarse threads for precise engagement and high load capacity. It adheres to ASME B18.3, NAS1352N6-20, and SAE AMS5731/5737 manufacturing standards, ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe industrial use.