S-93705A637 1/2"-13 x 1" ASME B18.3 18-8 Stainless Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing in demanding applications.
• Secure, vibration-resistant locking provided by the integrated nylon patch, maintaining clamp load from -70° to 250°F.
• Precise, reliable fit ensured by the Class 3A thread fit and UNC coarse thread, reducing the risk of cross-threading and enabling easier assembly.
• Efficient installation and removal with the 3/8" hex drive and standard socket head, allowing for high torque application in confined spaces.
• Full-threaded design for maximum grip and adjustability along the entire 1" length of the fastener.
• Broad industrial compliance meeting ASME B18.3, RoHS 3, and REACH standards for guaranteed quality and material safety.

Professional Applications & Engineering Value

This Socket Head Cap Screw is engineered to solve critical fastening challenges in industrial settings. The 18-8 Stainless Steel material provides excellent resistance to oxidation and corrosion, making it suitable for machinery, marine equipment, and chemical processing plants where environmental durability is paramount. The Class 3A thread fit and UNC coarse thread offer superior dimensional accuracy, ensuring a tight, secure connection that minimizes loosening under dynamic loads. The integrated nylon patch thread locker is a key feature for applications subject to vibration and thermal cycling, such as automotive assemblies, heavy-duty manufacturing equipment, and outdoor structures, maintaining joint integrity without the need for additional locking hardware. Its 3/8" hex drive and compact head profile allow for efficient installation in tight spaces, reducing assembly time and improving maintenance workflows.

Specification Summary & Compliance

This screw features a 1/2"-13 UNC coarse thread with a precision Class 3A fit for high-accuracy assembly. Manufacturing and dimensional specifications conform to ASME B18.3. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in various global markets.