S-92488A431 1/4"-20 x 1 1/2" ASME B18.3 High-Strength 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh chemical and marine environments.
• Exceptional mechanical strength offering 110,000 psi tensile strength for reliable performance under high-stress conditions.
• Precise and secure fastening ensured by Class 3A thread fit, minimizing the risk of loosening in critical assemblies.
• Enhanced durability and wear resistance from cold working and Rockwell C25 hardness, extending service life.
• Easy installation and removal with a standard 3/16" hex drive and socket head design, allowing for high torque application.
• Versatile partial threading for applications requiring both threaded and unthreaded sections, providing flexibility in design.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This 316 Stainless Steel Socket Head Cap Screw is engineered to address common industrial challenges such as corrosion, vibration, and high tensile loads. Its UNC coarse threading and Class 3A thread fit provide superior holding power and resistance to loosening in dynamic environments, making it ideal for machinery, automotive, and marine applications. The cold worked fabrication enhances its structural integrity, while the hex socket drive allows for efficient installation in confined spaces. By utilizing this partially threaded fastener, engineers can achieve precise clamping force and reduce the risk of thread damage, ensuring long-term reliability in demanding settings.

Specification Summary & Compliance

This fastener adheres to ASME B18.3 specifications, with precise Class 3A thread fit and UNC coarse threading for consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met. The manufacturing process includes cold working to achieve the stated mechanical properties, including a tensile strength of 110,000 psi and Rockwell C25 hardness, guaranteeing dimensional accuracy and durability in industrial applications.