S-90042A265 M5 x 8 mm ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Buna-N rubber O-ring ensures reliable sealing against fluids and gases, withstanding pressures up to 1500 psi for leak-proof assemblies in demanding environments.
• Exceptional Corrosion Resistance: Made from 18-8 stainless steel, offering excellent durability and resistance to rust and oxidation in harsh industrial conditions.
• High Tensile Strength & Reliability: With a tensile strength of 100,000 psi and Rockwell B85 hardness, these screws provide robust, long-lasting fastening for high-stress applications.
• Precision Thread Fit: Class 6g thread fit ensures smooth installation and secure holding power, reducing the risk of cross-threading and improving assembly efficiency.
• Wide Temperature Compatibility: O-ring functions effectively from -40° to 225° F, making it suitable for both low-temperature and high-heat operations without degradation.
• Standardized Socket Drive: 4 mm hex drive allows for easy torque application with common tools, minimizing slippage and enabling quick, secure fastening in confined spaces.
• Comprehensive Compliance: Meets ASME B18.3, DIN 912, and ISO 4762 standards, and is RoHS 3 and REACH compliant, ensuring safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This M5 metric socket head cap screw is engineered to address critical sealing and durability challenges in industrial settings. The 18-8 stainless steel construction provides inherent corrosion resistance, ideal for applications in chemical processing, marine equipment, and outdoor machinery where moisture and corrosive agents are present. The integrated Buna-N rubber O-ring delivers reliable sealing against oil, water, and air leaks, supporting systems that operate under high pressure up to 1500 psi. With a Class 6g thread fit and coarse 0.8 mm pitch, it ensures quick assembly and strong retention in components like hydraulic systems, pneumatic devices, and engine parts. The fully threaded design and right-hand thread orientation facilitate uniform load distribution, reducing the risk of joint failure and enhancing the longevity of mechanical assemblies in automotive, aerospace, and manufacturing industries.

Specification Summary & Compliance

This screw features precise M5 x 0.8 mm metric coarse threads with a Class 6g tolerance for accurate fit and performance. It is manufactured in compliance with ASME B18.3, DIN 912, and ISO 4762 standards, ensuring dimensional consistency and interoperability. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for hazardous substances. Additional specifications include a maximum hole diameter of 5.562 mm, fully threaded rod type, and right-hand thread direction, supporting reliable use in standardized industrial applications.