S-90042A263 M4 x 50 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 pressure sealing up to 1500 psi using a Buna-N rubber O-ring for leak-proof assemblies.
• High tensile strength of 100,000 psi ensures dependable load-bearing capacity in demanding applications.
• Precise Class 6g thread fit guarantees smooth installation and secure fastening with reduced risk of cross-threading.
• Wide temperature tolerance from -40° to 225°F maintains performance in extreme thermal conditions.
• Hex socket drive design allows for high torque application and easy access in confined spaces.
• Durable Rockwell B85 hardness provides excellent wear resistance and long service life.

Professional Applications & Engineering Value

This M4 socket head cap screw is engineered to address critical sealing and mechanical fastening challenges in industrial settings. The combination of 18-8 stainless steel and a Buna-N rubber O-ring creates a robust sealing solution that prevents fluid and gas leaks under pressures up to 1500 psi. The metric coarse thread with Class 6g tolerance ensures quick assembly and reliable thread engagement, while the partially threaded design provides optimal clamp load distribution. Ideal for machinery, hydraulic systems, and automotive components, this fastener delivers consistent performance where vibration resistance and environmental sealing are paramount. Its hex drive configuration enables efficient installation with standard tools, reducing assembly time in production lines.

Specification Summary & Compliance

This socket head cap screw features M4 x 0.7mm metric coarse threads with Class 6g thread fit tolerance, ensuring dimensional accuracy per ISO standards. The fastener complies with ASME B18.3, DIN 912, and ISO 4762 manufacturing specifications. It is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations for industrial components.