S-96738A055 5/16"-18 x 1" ASME B18.3 Vibration-Resistant Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• High tensile strength of 100,000 psi ensures dependable performance under extreme mechanical loads.
• Permanent vibration resistance via the nylon patch thread locker, maintaining secure fastening from -70° to 250°F.
• Effective sealing up to 1500 psi with the integrated Buna-N rubber O-ring, suitable for fluid and gas applications.
• Precise Class 3A thread fit for accurate engagement and reduced risk of cross-threading in assembly.
• Wide temperature compatibility with both thread locker and O-ring, supporting diverse industrial conditions.
• Easy installation and removal using a standard 1/4" hex drive, minimizing tooling requirements and downtime.

Professional Applications & Engineering Value

This socket head cap screw is engineered to address critical challenges in industrial assembly, such as vibration-induced loosening and fluid leakage. The 18-8 stainless steel provides excellent resistance to rust and chemicals, making it suitable for machinery, automotive, and processing equipment. The integrated nylon patch thread locker ensures that the screw remains securely fastened in high-vibration environments, while the Buna-N rubber O-ring offers reliable sealing against oils, water, and gases. With a coarse UNC thread and Class 3A fit, it allows for quick installation and robust performance in demanding applications, reducing maintenance needs and enhancing operational safety.

Specification Summary & Compliance

This product adheres to ASME B18.3 standards for dimensional accuracy and performance. It features a Class 3A thread fit for precise tolerances and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance in global markets.