S-90042A197 M8 x 50 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with a silicone rubber O-ring that withstands temperatures from -80° to 400° F and pressures up to 1500 psi, ideal for fluid and gas containment systems.
• High tensile strength and durability from 18-8 stainless steel construction, offering 100,000 psi tensile strength and Rockwell B85 hardness for reliable performance in demanding environments.
• Precision thread fit with Class 6g tolerance ensuring consistent engagement and reduced risk of cross-threading in metric coarse thread applications.
• Easy installation and high torque capability thanks to the 6mm hex socket drive, providing secure fastening in confined spaces without slipping.
• Corrosion resistance and compliance with RoHS 3 and REACH regulations, making it suitable for use in regulated industries and harsh conditions.
• Versatile partial threading with a 24mm minimum thread length on a 50mm screw, allowing for adjustable clamping force and secure hold in various material thicknesses.
• Broad industry acceptance by meeting ASME B18.3, DIN 912, and ISO 4762 standards, ensuring compatibility and reliability in global engineering projects.

Professional Applications & Engineering Value

This M8 socket head cap screw is engineered to address critical challenges in industrial sealing and fastening. Its 18-8 stainless steel material provides excellent corrosion resistance and strength, essential for applications in machinery, automotive, and chemical processing where exposure to moisture and chemicals is common. The metric coarse thread with a 1.25mm pitch ensures quick assembly and strong holding power, while the silicone rubber O-ring integrated into the design prevents leaks in high-pressure systems up to 1500 psi, reducing maintenance downtime. With a Class 6g thread fit, it offers precise alignment and minimizes the risk of thread damage during installation. Ideal for use in pumps, valves, and hydraulic systems, this screw delivers reliable performance in temperature extremes from -80° to 400° F, making it a top choice for engineers seeking durable, compliant fasteners that meet ASME B18.3, DIN 912, and ISO 4762 standards.

Specification Summary & Compliance

This screw features a Class 6g thread fit per ISO metric standards, ensuring dimensional accuracy and interchangeability. It complies with ASME B18.3, DIN 912, and ISO 4762 manufacturing specifications for socket head cap screws, and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, confirming it is free of hazardous substances and suitable for environmentally sensitive applications.