S-92245A710 1/2"-13 x 3/4" FF-S-85, MS35307-407 Mil. Spec. 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh environments and reducing maintenance costs.
• High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and mechanical stress.
• Rockwell B74 hardness provides excellent durability and resistance to wear, extending service life.
• Class 2A thread fit offers consistent, easy assembly and secure fastening with standard UNC coarse threads.
• External hex drive and 3/4" head width allow for high-torque installation using common tools, improving efficiency.
• Fully threaded design ensures maximum grip and uniform clamping force across the entire 3/4" length.
• Compliance with Fed. Spec. FF-S-85, RoHS 3, and REACH guarantees adherence to industry standards for safety and environmental regulations.

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw is engineered to address critical industrial challenges, such as corrosion-induced failure and high-stress demands. The passivated 18-8 stainless steel material provides robust protection against rust and chemical exposure, making it suitable for applications in marine, chemical processing, and outdoor equipment. Its coarse thread and Class 2A fit ensure quick, reliable installation in various materials, reducing assembly time and minimizing the risk of cross-threading. With a 70,000 PSI tensile strength and Rockwell B74 hardness, it delivers consistent performance in heavy-duty machinery, structural frameworks, and automotive assemblies, where vibration resistance and long-term reliability are paramount. The external hex drive design further enhances usability with standard wrenches, streamlining maintenance and repair operations in industrial settings.

Specification Summary & Compliance

This screw features precise UNC coarse threads with a Class 2A thread fit, ensuring dimensional accuracy and compatibility with standard nuts and tapped holes. It meets Fed. Spec. FF-S-85 (MS35307-407) for consistent quality and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for hazardous substances.