S-90042A453 M4 x 8 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Viton® fluoroelastomer O-ring ensures a reliable seal against fluids and gases, maintaining integrity in high-pressure environments up to 1500 psi.
• Exceptional Corrosion & Temperature Resistance: Made from 18-8 Stainless Steel, this screw withstands harsh conditions and a wide temperature range from -20° to 400° F, ideal for demanding industrial settings.
• High Tensile Strength & Durability: With a 100,000 psi tensile strength and Rockwell B85 hardness, it offers robust, long-lasting performance under heavy mechanical stress.
• Precise & Secure Fastening: Features a Class 6g thread fit and coarse M4 x 0.7mm thread, ensuring easy installation and reliable hold in various materials.
• Easy Installation with Hex Drive: The 3 mm hex socket head allows for efficient torque application with standard tools, reducing assembly time and improving workflow.
• Full Thread Engagement: Fully threaded design provides consistent clamping force along the entire 8 mm length, enhancing joint stability.
• Compliance with Global Standards: Meets ASME B18.3, DIN 912, and ISO 4762 specifications, ensuring interoperability and quality assurance in international projects.

Professional Applications & Engineering Value

This M4 socket head cap screw is engineered to address critical sealing and durability challenges in high-pressure and temperature-variable environments. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for applications in chemical processing, automotive, and aerospace industries where exposure to moisture and chemicals is common. The inclusion of a Viton® fluoroelastomer O-ring ensures a tight seal, preventing leaks in hydraulic systems, pumps, and machinery operating under pressures up to 1500 psi. Its fully threaded metric design with a coarse pitch allows for quick installation and secure fastening in industrial assemblies, reducing downtime and maintenance costs. By combining high tensile strength with precise thread fit, this fastener delivers reliable performance in demanding applications, ensuring long-term operational safety and efficiency.

Specification Summary & Compliance

This socket head cap screw adheres to precise dimensional standards, including Class 6g thread fit for metric coarse threads (M4 x 0.7mm) and a length of 8 mm, ensuring compatibility with ISO 4762, DIN 912, and ASME B18.3 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing the use of safe, environmentally responsible materials in production.