S-97870A181 M3 x 12 mm Sealing Tamper-Resistant Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Buna-N rubber O-ring creates a reliable seal against fluids and contaminants, handling pressures up to 1500 psi for leak-proof assemblies.
• Enhanced Tamper Resistance: Tamper-Resistant Torx T10 drive provides added security, deterring unauthorized access in public or high-security environments.
• Excellent Corrosion Resistance: Made from 18-8 Stainless Steel with a passivated finish for prolonged durability in harsh, moist, or chemical-exposed conditions.
• Wide Temperature Tolerance: O-ring maintains elasticity from -40° to 225° F, ensuring consistent sealing across diverse operating climates.
• Precision Thread Fit: Class 6g metric coarse threads offer optimal engagement and vibration resistance, reducing the risk of loosening.
• Streamlined Flush Mounting: Undercut flat head design sits flush with surfaces, minimizing protrusion and preventing snagging in compact spaces.
• High Tensile Strength: With 70,000 psi tensile strength and full threading, these screws provide robust, reliable fastening under mechanical stress.

Professional Applications & Engineering Value

Engineered for demanding environments, these M3 flat head screws address critical challenges in industrial sealing and tamper-proofing. The combination of 18-8 stainless steel and a passivated finish ensures long-term corrosion resistance, ideal for outdoor equipment, marine hardware, or chemical processing units. The Buna-N rubber O-ring is essential for applications requiring pressure integrity—such as fluid control systems, pneumatic devices, or electronic enclosures—where preventing leaks up to 1500 psi is paramount. The tamper-resistant Torx T10 drive adds a layer of security, making these screws suitable for public infrastructure, transportation, or access panels where vandalism or tampering is a concern. Fully threaded with a Class 6g fit, they ensure uniform load distribution and reduce installation time, enhancing efficiency in assembly lines.

Specification Summary & Compliance

This metric screw features an M3 x 0.5 mm coarse thread with Class 6g tolerance for precise fit, an undercut flat head with 90° countersink angle, and a maximum hole diameter of 3.454 mm. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.