S-90042A215 M2 x 18 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 provides reliable sealing for applications up to 1500 psi, preventing fluid and gas leakage in demanding environments.
• Exceptional Corrosion Resistance: 18-8 stainless steel construction ensures long-term durability and reliability in harsh, corrosive industrial settings.
• High Mechanical Strength: With a tensile strength of 100,000 psi and Rockwell B85 hardness, this screw maintains integrity under high stress and vibration.
• Precision Thread Fit: Class 6g thread tolerance ensures consistent, secure fastening with reduced risk of cross-threading or loosening.
• Wide Temperature Compatibility: O-ring functions effectively across a broad range from -40° to 225° F, suitable for various thermal conditions.
• Secure Hex Drive Engagement: 1.5 mm hex socket drive allows for high torque application and prevents stripping, ensuring easy installation and removal.
• Industry Standard Compliance: Manufactured to ASME B18.3, DIN 912, and ISO 4762 specifications, guaranteeing interchangeability and quality assurance.

Professional Applications & Engineering Value

This M2 metric socket head cap screw is engineered to address critical sealing and fastening challenges in precision assemblies. The 18-8 stainless steel material offers excellent resistance to oxidation and chemical exposure, making it ideal for industrial fasteners in machinery, automotive, and electronic enclosures. The partially threaded design with Class 6g thread fit provides optimal grip strength while minimizing material stress. Combined with the Buna-N rubber O-ring, it effectively seals against high-pressure fluids and contaminants, solving common leakage issues in hydraulic systems, pumps, and compressed air equipment. Its hex drive ensures reliable torque transmission in confined spaces, enhancing assembly efficiency and maintenance safety.

Specification Summary & Compliance

This screw features a metric coarse thread with M2 x 0.4 mm pitch and Class 6g thread tolerance for precise fit. It is manufactured in compliance with ASME B18.3, DIN 912, and ISO 4762 standards, ensuring dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for global industrial use.