S-92196A413 5/8"-18 x 3 1/2" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing long-term maintenance costs.
• Superior load-bearing capability thanks to a high 70,000 psi tensile strength, ensuring reliable performance under significant stress.
• Precise and secure fastening achieved with a Class 3A thread fit, minimizing the risk of loosening in high-vibration applications.
• Optimized torque transmission via the 1/2" hex drive and standard socket head, allowing for easy installation in confined spaces.
• Enhanced durability and wear resistance from a Rockwell B70 hardness, extending the fastener's service life.
• Reliable fine-thread engagement with the 5/8"-18 UNF thread, providing improved adjustment precision and vibration resistance.
• Compliance with major industry and environmental standards including ASME B18.3, RoHS 3, and REACH, ensuring quality and regulatory safety.

Professional Applications & Engineering Value

This Socket Head Cap Screw is engineered to solve critical fastening challenges in demanding industrial settings. The 18-8 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it a prime choice for applications in chemical processing, marine environments, and food machinery where moisture and corrosive agents are present. The fine UNF thread and Class 3A fit provide a tighter, more precise connection than coarse threads, significantly reducing the risk of vibration-induced loosening in dynamic assemblies such as heavy machinery, automotive systems, and precision equipment. The partially threaded design allows for secure clamping of components without unnecessary thread engagement, while the standard socket head and 1/2" hex drive facilitate installation in tight spaces where wrench clearance is limited, enhancing assembly efficiency and reliability.

Specification Summary & Compliance

This fastener features a 5/8"-18 UNF fine thread with a Class 3A thread fit for high precision. It is manufactured in compliance with the ASME B18.3 standard, ensuring dimensional accuracy and interchangeability. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances.