S-98070A620 M3 x 5 mm DIN 965 Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Reliable Sealing Performance: Integrated silicone rubber O-ring creates a secure seal capable of withstanding pressures up to 6000 psi, preventing leaks in demanding applications.
• Superior Corrosion Resistance: Made from 18-8 stainless steel with a passivated finish for excellent durability in harsh environments.
• Wide Temperature Tolerance: Silicone O-ring maintains integrity across an extreme temperature range from -80° to 400° F.
• Precision Thread Fit: Class 6g thread fit ensures smooth installation and reliable fastening in metric assemblies.
• Optimized Head Design: Undercut flat head with 90° countersink allows for flush mounting and reduced risk of head protrusion.
• High Tensile Strength: 70,000 psi tensile strength provides robust mechanical performance for critical connections.
• Standardized Compliance: Manufactured to DIN 965 specifications for consistent quality and interchangeability.

Professional Applications & Engineering Value

These M3 flat head Phillips screws are engineered to solve critical sealing challenges in industrial equipment, hydraulic systems, and precision instrumentation. The combination of 18-8 stainless steel construction and silicone rubber O-ring creates a dual-purpose fastener that provides both mechanical strength and fluid/gas sealing capability. The undercut flat head design ensures proper seating in countersunk holes while the metric coarse thread with 0.5mm pitch facilitates quick installation and secure fastening. This makes them ideal for applications requiring pressure containment up to 6000 psi while maintaining performance across extreme temperature variations from -80° to 400° F, eliminating the need for separate sealing components and reducing assembly time.

Specification Summary & Compliance

This M3 x 0.5mm flat head screw features Class 6g thread fit tolerance according to metric standards and is fully threaded for maximum engagement. The fastener complies with DIN 965 specifications for dimensional accuracy and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The passivated finish on the 18-8 stainless steel enhances corrosion resistance while maintaining the material's inherent strength characteristics of 70,000 psi tensile strength.