S-90042A319 M2 x 4 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 creates a reliable seal against fluids and gases, preventing leaks in demanding applications.
• Exceptional Corrosion Resistance: Manufactured from 18-8 Stainless Steel, offering excellent durability and resistance to rust in harsh environments.
• High-Strength & Durability: With a 100,000 psi tensile strength and Rockwell B85 hardness, this screw maintains integrity under high mechanical stress.
• Reliable Pressure & Temperature Handling: Withstands pressures up to 1500 psi and a wide temperature range from -40° to 225° F, ensuring performance in variable conditions.
• Precision Thread Fit: Class 6g thread fit with coarse pitch (0.4 mm) ensures easy assembly and a secure, vibration-resistant connection.
• Standardized Socket Drive: 1.5 mm hex drive allows for high torque application with standard tools, reducing the risk of stripping and enabling efficient installation.
• Broad Regulatory Compliance: Meets ASME B18.3, DIN 912, and ISO 4762 standards, and is RoHS 3 and REACH compliant for safe, global use.

Professional Applications & Engineering Value

This M2 x 0.4 mm socket head cap screw is engineered to address critical sealing and fastening challenges in precision assemblies. The combination of 18-8 stainless steel and a Buna-N rubber O-ring provides a robust solution for preventing fluid and gas ingress in applications such as pneumatic systems, fluid handling equipment, and compact electronic enclosures. Its fully threaded design and right-hand coarse thread facilitate quick installation and high clamp load, while the hex socket drive ensures secure torque transmission in confined spaces. Ideal for OEMs and maintenance teams, this screw enhances assembly reliability, reduces downtime due to leaks, and supports long-term operational efficiency in industries from automation to instrumentation.

Specification Summary & Compliance

This metric screw features precise M2 x 0.4 mm coarse threads with a Class 6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. It is manufactured in compliance with ASME B18.3, DIN 912, and ISO 4762 specifications for socket head cap screws. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.