S-90505A443 M3 x 6 mm DIN 965 Sealing Stainless Steel Phillips 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, ideal for pressurized systems up to 6000 psi.
• Exceptional Corrosion Resistance: Made from 316 stainless steel, offering excellent durability in harsh, corrosive environments like marine or chemical processing.
• Flush, Secure Mounting: Undercut flat head design ensures a smooth, countersunk finish that minimizes protrusion and prevents snagging.
• High Tensile Strength: Withstands up to 70,000 psi tensile stress, providing reliable fastening in demanding mechanical assemblies.
• Wide Temperature Tolerance: O-ring maintains integrity across a broad range from -40° to 225°F, suitable for variable operational conditions.
• Precision Thread Fit: Class 6g coarse threads ensure easy installation and secure, vibration-resistant connections in metric applications.
• Streamlined Installation: Phillips No. 1 drive allows for efficient driving with standard tools, reducing assembly time.

Professional Applications & Engineering Value

This M3 flat head screw is engineered to address critical sealing and corrosion challenges in industrial settings. The combination of 316 stainless steel and a Buna-N rubber O-ring provides a robust solution for applications exposed to moisture, chemicals, or high pressure, such as fluid handling systems, machinery enclosures, and automotive components. The undercut flat head profile and fully threaded design allow for a flush fit that prevents leakage points and resists loosening under vibration. By meeting DIN 965 specifications, it ensures dimensional consistency and interoperability, reducing the risk of assembly errors and enhancing the longevity of your equipment in demanding environments.

Specification Summary & Compliance

This screw features an M3 x 0.5 mm coarse thread with a Class 6g tolerance for precise fit, and is fully threaded for maximum grip. It complies with DIN 965 standards for flat head screws, ensuring dimensional accuracy. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.