S-90042A291 M8 x 35 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
• Reliable high-pressure sealing up to 1500 psi, thanks to the integrated Buna-N rubber O-ring.
• Wide temperature tolerance from -40° to 225°F, ensuring performance stability in varied operating conditions.
• Precise thread engagement with Class 6g fit and coarse 1.25mm pitch, enabling quick assembly and secure fastening.
• High tensile strength of 100,000 psi and Rockwell B85 hardness, providing exceptional durability and load-bearing capacity.
• Standard hex socket drive (6mm) allows for easy installation with common tools, reducing assembly time.
• Full thread coverage along the 35mm length ensures maximum grip and uniform stress distribution.

Professional Applications & Engineering Value

This M8 socket head cap screw is engineered to address critical sealing and mechanical fastening challenges in demanding applications. The 18-8 stainless steel offers excellent resistance to rust and oxidation, while the Buna-N O-ring creates a robust seal against fluids and gases under pressures up to 1500 psi. Its coarse metric thread (1.25mm pitch) and Class 6g thread fit ensure reliable performance in machinery, automotive assemblies, and hydraulic systems, where vibration resistance and leak-proof connections are paramount. Fully threaded for consistent clamping force, it is ideal for equipment exposed to temperature fluctuations from -40° to 225°F, providing long-term reliability in industrial settings.

Specification Summary & Compliance

Manufactured to Class 6g thread tolerance with a coarse M8 x 1.25mm metric thread, this fully threaded screw adheres to ASME B18.3, DIN 912, and ISO 4762 standards. It is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.