S-98070A890 M3 x 5 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 ensures reliable sealing, preventing leaks in applications up to 6000 psi, ideal for pressurized systems.
• Excellent Corrosion Resistance: Made from 18-8 stainless steel with a passivated finish, offering enhanced durability and longevity in harsh, corrosive environments.
• Precision Thread Fit: Class 6g coarse thread with M3 x 0.5 mm pitch provides secure, vibration-resistant fastening and easy installation in industrial assemblies.
• Optimized Head Design: Undercut flat head with 90° countersink allows for a flush, low-profile fit, reducing protrusion and improving aesthetics in finished products.
• Broad Temperature Compatibility: O-ring functions effectively from -40° to 225° F, ensuring consistent sealing across diverse operating conditions.
• High Tensile Strength: With a tensile strength of 70,000 psi, this screw delivers robust mechanical performance for demanding applications.
• Efficient Drive System: Phillips No. 1 drive facilitates quick and secure installation, minimizing tool slippage and enhancing assembly efficiency.

Professional Applications & Engineering Value

This M3 flat head screw is engineered to address critical sealing and corrosion challenges in industrial settings. The combination of 18-8 stainless steel and a passivated finish provides exceptional resistance to rust and chemicals, making it suitable for machinery, automotive, and electronic enclosures exposed to moisture or aggressive substances. The Buna-N O-ring and undercut flat head profile ensure a tight seal against fluids and gases, preventing leaks in systems operating under high pressure up to 6000 psi. With a metric coarse thread and Class 6g fit, it offers reliable fastening in industrial fasteners, reducing the risk of loosening due to vibrations. This screw is ideal for applications requiring both secure mounting and environmental protection, such as in hydraulic systems, control panels, and assembly lines, where durability and compliance with standards are paramount.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including M3 x 0.5 mm coarse thread with a Class 6g thread fit for consistent performance. It meets DIN 965 specifications for flat head screws, ensuring compatibility and reliability in metric-based designs. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility for global industrial use.