S-90042A489 M8 x 25 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with Viton® fluoroelastomer O-ring for reliable leak prevention in high-pressure applications up to 1500 psi
• Exceptional corrosion resistance from 18-8 stainless steel construction, ensuring long-term durability in harsh industrial environments
• High tensile strength rating of 100,000 psi provides reliable fastening integrity under demanding mechanical loads
• Wide temperature tolerance (-20° to 400° F) maintains sealing effectiveness across diverse operating conditions
• Precision hex socket drive enables secure tool engagement and consistent torque application during installation
• Industry-standard compliance with ASME B18.3, DIN 912, and ISO 4762 ensures dimensional accuracy and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH demonstrates commitment to safety and sustainability

Professional Applications & Engineering Value

This M8 socket head cap screw with Viton® fluoroelastomer sealing technology addresses critical engineering challenges in industrial applications where fluid containment and pressure integrity are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance for harsh environments, while the Class 6g thread fit ensures precise engagement and reliable fastening performance. The integrated O-ring sealing system creates an effective barrier against leaks in hydraulic systems, pneumatic equipment, and processing machinery, operating reliably across a broad temperature range from -20° to 400° F. The hex socket drive design allows for compact installation in confined spaces while maintaining high torque capability, making these metric sealing fasteners ideal for precision assembly applications requiring both mechanical strength and environmental sealing.

Specification Summary & Compliance

This socket head cap screw features M8 x 1.25mm coarse thread with Class 6g tolerance for precise fitment, manufactured to ASME B18.3, DIN 912, and ISO 4762 standards. The fastener is fully threaded with a 25mm length and 6mm hex drive size. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications.