S-92423A543 1/4"-20 x 1 1/4" FF-S-86, NAS1352N4-20, 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 high-stress conditions, reducing the risk of fastener failure.
• High yield strength of 120,000 PSI provides superior resistance to deformation, maintaining structural integrity in demanding applications.
• Rockwell C33 hardness offers excellent wear resistance and durability, extending the screw's service life in abrasive environments.
• Passivated finish enhances corrosion resistance, protecting against rust and chemical exposure for long-term reliability.
• Class 3A thread fit ensures precise, tight tolerances for secure fastening and vibration resistance in critical assemblies.
• Hex socket drive design allows for easy installation and removal with standard tools, improving assembly efficiency.
• Compliance with Fed. Spec. FF-S-86, NAS1352N4-20, and SAE AMS5737 guarantees adherence to rigorous industry standards for quality and safety.

Professional Applications & Engineering Value

This 1/4"-20 A286 Stainless Steel Socket Head Cap Screw is engineered to address common industrial challenges, such as vibration loosening and material fatigue. The A286 stainless steel material combines high strength with excellent corrosion resistance, making it ideal for aerospace, automotive, and heavy machinery applications where reliability is critical. The UNRC coarse thread and Class 3A thread fit provide superior holding power and ease of assembly in high-vibration environments, reducing maintenance needs. With a passivated finish, it withstands harsh conditions, ensuring long-term performance in demanding settings like engine components or structural frames. Its fully threaded design allows for uniform load distribution, minimizing stress concentrations and enhancing joint integrity.

Specification Summary & Compliance

This screw features precise Class 3A thread fit per UNRC standards, ensuring tight tolerances for secure fastening. It complies with Fed. Spec. FF-S-86, NAS1352N4-20, and SAE AMS5737 manufacturing specifications, guaranteeing quality and consistency. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.