S-90042A420 M2.5 x 6 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 creates a reliable, long-lasting seal against fluids and gases, preventing leaks in critical systems.
• Exceptional Temperature & Pressure Resistance: Withstands extreme conditions from -20° to 400° F and pressures up to 1500 psi, ensuring reliability in demanding environments.
• High Strength & Durability: Made from 18-8 Stainless Steel with a 100,000 psi tensile strength and Rockwell B85 hardness for excellent corrosion resistance and mechanical integrity.
• Precision Fit & Easy Installation: Class 6g thread fit and coarse 0.45 mm pitch ensure easy assembly and a secure hold, while the 2 mm hex drive allows for high torque application.
• Broad Industry Compliance: Conforms to ASME B18.3, DIN 912, and ISO 4762 standards, guaranteeing dimensional accuracy and interchangeability.
• Environmental & Regulatory Safety: Fully compliant with RoHS 3 and REACH regulations, making it safe for use in various regulated industries.
• Versatile Fully Threaded Design: The fully threaded M2.5 x 6 mm body provides consistent clamping force and is ideal for applications requiring full engagement.

Professional Applications & Engineering Value

This M2.5 socket head cap screw is engineered to solve critical sealing challenges in industrial applications where fluid and gas containment is paramount. The 18-8 stainless steel construction offers excellent resistance to corrosion and oxidation, while the integrated Viton® fluoroelastomer O-ring provides a robust seal that performs reliably under extreme temperatures from -20° to 400° F and pressures up to 1500 psi. Its metric coarse thread with a 0.45 mm pitch and Class 6g thread fit ensures quick, secure installation and vibration resistance, making it ideal for use in pneumatic systems, hydraulic assemblies, automotive components, and high-temperature machinery. The hex drive design allows for high torque application in confined spaces, enhancing assembly efficiency and reliability in demanding engineering environments.

Specification Summary & Compliance

This screw features an M2.5 x 0.45 mm coarse thread with a Class 6g thread fit and a length of 6 mm, ensuring precise dimensional accuracy per ASME B18.3, DIN 912, and ISO 4762 standards. It is manufactured from 18-8 stainless steel with a tensile strength of 100,000 psi and Rockwell B85 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety and environmental suitability for global industrial use.