S-92423A141 1/4"-20 x 4" ASME B18.3, NAS1352N4-64, 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 loads, reducing the risk of fastener failure in critical applications.
• Superior corrosion resistance from the passivated A286 stainless steel finish extends service life in harsh environments, minimizing maintenance and replacement costs.
• Precise Class 3A thread fit provides secure, vibration-resistant connections, enhancing assembly integrity and reducing loosening over time.
• High hardness (Rockwell C33) offers excellent wear resistance, maintaining thread integrity and drive features through repeated use.
• Standard hex socket drive allows for easy installation and removal with common tools, improving assembly efficiency and reducing labor time.
• Compliance with ASME B18.3 and aerospace standards (NAS1352N4-64, SAE AMS5731/5737) ensures consistent quality and reliability for regulated industries.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global supply chain integration.

Professional Applications & Engineering Value

This A286 stainless steel socket head cap screw is engineered to address demanding industrial challenges where high tensile strength and corrosion resistance are critical. The partially threaded design with UNRC coarse threads ensures rapid assembly and secure clamping in heavy machinery, aerospace components, and automotive systems. Its passivated finish provides an added layer of protection against oxidation and chemical exposure, making it ideal for environments with high humidity or corrosive agents. The hex drive and Class 3A thread fit deliver precise torque transmission and vibration resistance, reducing the need for frequent retightening and maintenance. By meeting ASME B18.3 and aerospace specifications, this fastener offers reliable performance in applications requiring strict adherence to engineering standards and long-term durability.

Specification Summary & Compliance

This 1/4-20 socket head cap screw features a Class 3A thread fit with UNRC coarse threads, ensuring high precision and interchangeability. Manufactured in compliance with ASME B18.3, NAS1352N4-64, and SAE AMS5731/5737 standards, it guarantees consistent dimensional accuracy and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for hazardous substance restrictions.