S-90042A256 M4 x 14 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N rubber O-ring, preventing leaks in high-pressure applications up to 1500 psi
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• High mechanical strength with 100,000 psi tensile strength and Rockwell B85 hardness for demanding industrial applications
• Wide temperature tolerance from -40° to 225° F, maintaining seal integrity across extreme operating conditions
• Precision Class 6g thread fit providing consistent engagement and reliable fastening in metric assemblies
• Easy installation and removal with standard hex socket drive design, reducing assembly time and tool wear
• Full regulatory compliance meeting international standards including ASME B18.3, DIN 912, and ISO 4762

Professional Applications & Engineering Value

This M4 socket head cap screw delivers critical sealing solutions for industrial equipment where fluid containment is paramount. The combination of 18-8 stainless steel construction and Buna-N rubber O-ring addresses common failure points in hydraulic systems, pneumatic controls, and processing machinery. Engineered with Class 6g thread tolerance and coarse thread pitch, it ensures rapid assembly while maintaining sealing integrity under maximum pressure of 1500 psi. The fully threaded design provides consistent clamping force across the entire fastener length, making it ideal for precision assemblies in automotive, aerospace, and industrial manufacturing applications where vibration resistance and environmental sealing are critical requirements.

Specification Summary & Compliance

This metric fastener features precision M4 x 0.7mm coarse threads with Class 6g tolerance according to ISO metric standards. The 14mm length and standard socket head profile conform to ASME B18.3, DIN 912, and ISO 4762 dimensional specifications. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring material safety and restricted substance compliance for global industrial applications.