S-92185A124 4-40 x 9/16" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction and passivated finish
• Exceptional mechanical reliability with 70,000 psi tensile strength and Rockwell B70 hardness for high-stress applications
• Precise, secure fastening ensured by Class 3A thread fit and UNC coarse threads for reduced cross-threading
• Easy installation in confined spaces using the standard hex socket drive with 3/32" drive size
• Full-length thread engagement for maximum holding power across the entire 9/16" length
• Compliance with global regulations including RoHS 3 and REACH for safe, sustainable usage
• Right-hand thread design providing standard, intuitive installation for maintenance and assembly

Professional Applications & Engineering Value

This 316 stainless steel socket head cap screw is engineered to address critical challenges in demanding sectors such as chemical processing, marine equipment, and food machinery, where exposure to corrosive agents is common. The passivated finish enhances the natural corrosion resistance of 316 stainless steel, significantly extending service life and reducing maintenance costs. With its UNC coarse threads and Class 3A fit, it ensures rapid assembly with minimal risk of thread damage, while the hex socket drive allows for high torque application in tight spaces. These features make it an ideal choice for applications requiring reliable, high-strength fastening under aggressive environmental conditions.

Specification Summary & Compliance

This fastener adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It is fully threaded with a 4-40 thread size and coarse thread spacing. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations is confirmed, ensuring environmental safety and regulatory alignment for industrial use.