S-92423A152 5/16"-18 x 4" ASME B18.3, NAS1352N5-64, SAE AMS5731, SAE AMS5737 High-Strength A286 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile and Yield Strength – With 160,000 psi tensile and 120,000 psi yield strength, this screw provides superior load-bearing capacity and resistance to deformation in high-stress assemblies.
• Enhanced Corrosion Resistance – The passivated finish on A286 stainless steel significantly improves durability against harsh environments, reducing maintenance and replacement frequency.
• Precise Thread Fit for Secure Fastening – Class 3A thread fit ensures tight, reliable engagement with mating parts, minimizing the risk of loosening under vibration or dynamic loads.
• High Hardness for Longevity – Rockwell C33 hardness offers excellent wear resistance, maintaining thread integrity and drive performance over repeated use.
• Optimized Drive Design – The hex socket head with 1/4" drive allows for high-torque installation and easy access in confined spaces, improving assembly efficiency.
• Compliance with Rigorous Standards – Meets ASME B18.3, NAS1352N5-64, and SAE AMS5731/5737, ensuring consistent quality and reliability for critical aerospace and industrial applications.
• Environmental and Regulatory Safety – RoHS 3 and REACH compliant, making it suitable for use in regulated industries without hazardous substance concerns.

Professional Applications & Engineering Value

This 5/16"-18 A286 Stainless Steel Socket Head Cap Screw is engineered to address demanding industrial challenges where strength, corrosion resistance, and precision are paramount. The A286 stainless steel material, combined with a passivated finish, provides exceptional resistance to oxidation and chemical exposure, making it ideal for aerospace, automotive, and heavy machinery applications. Its Class 3A thread fit and coarse UNRC thread ensure secure fastening in high-vibration environments, reducing the risk of joint failure. The partially threaded design and 4" length offer versatility for assemblies requiring both clamping and alignment. By adhering to ASME B18.3 and other stringent standards, this screw delivers reliable performance in critical systems, enhancing operational safety and reducing downtime.

Specification Summary & Compliance

This screw features a 5/16"-18 thread size with Class 3A thread fit and coarse UNRC threads, ensuring precise dimensional accuracy per industry standards. It is manufactured in compliance with ASME B18.3, NAS1352N5-64, SAE AMS5731, and SAE AMS5737 specifications. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use without restricted substances.