S-90042A126 M6 x 20 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated silicone rubber O-ring ensures reliable leak-proof sealing under pressures up to 1500 psi, ideal for hydraulic and pneumatic systems.
• Exceptional Corrosion Resistance: Made from 18-8 stainless steel, offering excellent durability in harsh environments and reducing maintenance frequency.
• High Tensile Strength: Withstands up to 100,000 psi tensile loads, providing secure fastening in high-stress industrial applications.
• Wide Temperature Tolerance: O-ring functions effectively from -80° to 400° F, ensuring performance stability in extreme thermal conditions.
• Precise Thread Fit: Class 6g thread ensures easy assembly and reliable engagement, minimizing the risk of cross-threading and improving installation efficiency.
• Standardized Hex Drive: 5 mm hex drive allows for high torque application with common tools, facilitating quick and secure installations.
• Full Thread Engagement: Fully threaded design provides consistent clamping force along the entire length, enhancing joint integrity.

Professional Applications & Engineering Value

This M6 socket head cap screw is engineered to address critical sealing and durability challenges in demanding industrial settings. The 18-8 stainless steel construction resists corrosion and oxidation, making it suitable for outdoor, marine, and chemical processing equipment. The integrated silicone rubber O-ring creates a robust seal that prevents fluid and gas leaks in high-pressure systems up to 1500 psi, such as in pumps, valves, and compressors. With a Class 6g thread fit and coarse thread pitch, it ensures quick, accurate installation without stripping, reducing downtime in assembly lines. Its fully threaded metric design offers uniform stress distribution, ideal for machinery, automotive, and aerospace applications where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This screw features an M6 x 1 mm metric coarse thread with Class 6g tolerance for precise fit, a 5 mm hex drive, and a standard socket head profile. It is manufactured in compliance with ASME B18.3, DIN 912, and ISO 4762 standards, ensuring dimensional accuracy and interoperability. The product is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, supporting environmental safety and regulatory requirements in global markets.