S-92178A162 M3 x 16 mm ASTM F879M, ISO 7380 Sealing Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Buna-N rubber O-ring creates a reliable seal capable of withstanding pressures up to 1500 psi, preventing leaks in critical applications.
• Exceptional Corrosion Resistance: Passivated 18-8 Stainless Steel construction ensures long-term durability and performance in harsh or wet environments.
• Enhanced Tamper Resistance: Tamper-Resistant Torx T8 drive provides increased security, deterring unauthorized access or disassembly.
• High Mechanical Strength: 100,000 psi tensile strength and Rockwell B96 hardness offer reliable fastening under significant stress and vibration.
• Broad Temperature Tolerance: O-ring maintains sealing integrity across a wide temperature range from -40° to 225° F, suitable for varied operational conditions.
• Precision Thread Fit: Class 6g thread ensures consistent, secure engagement with mating components, reducing the risk of cross-threading or loosening.
• Wide Regulatory Compliance: Meets ASTM F879M and ISO 7380 specifications, and is RoHS 3 and REACH compliant for safe, global use.

Professional Applications & Engineering Value

This M3 metric screw is engineered to solve critical sealing challenges in demanding industrial applications. The combination of passivated 18-8 stainless steel and a Buna-N rubber O-ring provides a robust solution for environments where fluid or gas containment is essential, such as in pneumatic systems, fluid handling equipment, and outdoor enclosures exposed to the elements. The tamper-resistant Torx T8 drive adds a layer of security, making it ideal for public infrastructure, transportation, or sensitive machinery where unauthorized tampering is a concern. Its fully threaded design and coarse thread pitch ensure quick installation and high pull-out strength, reducing assembly time and improving long-term reliability in vibration-prone settings.

Specification Summary & Compliance

This fastener features a Class 6g thread fit according to metric thread standards, ensuring dimensional accuracy and compatibility. It is manufactured to meet ASTM F879M and ISO 7380 specifications, guaranteeing consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for use in various international markets.