S-90042A168 M3 x 50 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with a silicone rubber O-ring that maintains integrity across extreme temperatures from -80° to 400° F, preventing leaks in demanding environments.
• Exceptional corrosion resistance provided by 18-8 stainless steel construction, ensuring long-term reliability in harsh or humid conditions.
• High tensile strength of 100,000 psi and Rockwell B85 hardness for reliable load-bearing capacity and resistance to deformation under stress.
• Secure hex drive engagement with a 2.5 mm drive size, enabling precise torque application and reducing the risk of stripping during installation.
• Optimized thread design with Class 6g fit and coarse 0.5 mm pitch for faster assembly, reduced cross-threading, and stable fastening in high-vibration applications.
• Pressure resistance up to 1500 psi, making it suitable for hydraulic, pneumatic, and other high-pressure systems requiring dependable sealing.
• Global compliance and interoperability through adherence to ASME B18.3, DIN 912, and ISO 4762 standards, plus RoHS 3 and REACH environmental regulations.

Professional Applications & Engineering Value

This M3 sealing socket head cap screw addresses critical engineering challenges in high-pressure and temperature-sensitive systems. The 18-8 stainless steel material offers excellent corrosion resistance, which is vital for applications in chemical processing, marine equipment, and outdoor machinery. The integrated silicone rubber O-ring ensures a reliable seal against fluids and gases, preventing leaks in hydraulic assemblies, pneumatic controls, and automotive components. With a partially threaded design and coarse metric thread, it facilitates quick installation and maintains clamp load in vibrating environments, reducing maintenance needs. Its compliance with DIN 912 and ISO 4762 standards guarantees dimensional accuracy and compatibility with global machinery, enhancing operational efficiency and safety in industrial settings.

Specification Summary & Compliance

This fastener features precise Class 6g thread fit per metric standards, ensuring consistent engagement and performance. It meets ASME B18.3, DIN 912, and ISO 4762 specifications for dimensional accuracy and mechanical properties. Environmental compliance is confirmed with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) adherence, supporting sustainable and safe usage in regulated industries.