S-90042A422 M2.5 x 10 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, ideal for applications requiring resistance to fluids and gases under high pressure up to 1500 psi.
• Excellent corrosion resistance provided by 18-8 stainless steel material, ensuring long-term durability in harsh industrial environments.
• High tensile strength of 100,000 psi and Rockwell B85 hardness for reliable load-bearing capacity and resistance to deformation under stress.
• Precision metric threading (M2.5 x 0.45mm, Class 6g) ensures consistent fit and ease of assembly, reducing the risk of cross-threading and improving installation efficiency.
• Wide temperature tolerance from -20° to 400° F thanks to the Viton® O-ring, making it suitable for extreme thermal conditions without compromising seal integrity.
• Compact and efficient design with a standard hex socket drive (2 mm) and low-profile head, allowing for tight spaces and secure fastening with common tools.
• Compliance with international standards including ASME B18.3, DIN 912, and ISO 4762, ensuring interoperability and quality assurance for global engineering projects.

Professional Applications & Engineering Value

This M2.5 socket head cap screw is engineered to address critical challenges in industrial assemblies where leak prevention and environmental resistance are paramount. The combination of 18-8 stainless steel and a Viton® fluoroelastomer O-ring provides a robust sealing solution that withstands pressures up to 1500 psi and temperatures from -20° to 400° F, making it ideal for hydraulic systems, pneumatic equipment, and high-temperature machinery. The fully threaded, coarse pitch design with Class 6g tolerance ensures quick, secure installation in metric coarse thread applications, reducing assembly time and minimizing the risk of fluid or gas leaks. This screw's hex socket drive allows for precise torque application in confined spaces, enhancing reliability in automotive, aerospace, and manufacturing sectors where durability and compliance with strict standards are essential.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including Class 6g thread fit for metric coarse threads (M2.5 x 0.45mm) and a maximum hole diameter of 2.946 mm, ensuring accurate alignment and performance. It meets key manufacturing specifications such as ASME B18.3, DIN 912, and ISO 4762, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity for industrial use.