S-90505A510 M3 x 20 mm DIN 965 Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 Stainless Steel construction, ideal for marine, chemical, and outdoor applications.
• Reliable fluid and gas sealing under extreme conditions, with a Viton® Fluoroelastomer O-ring that performs from -20° to 400° F and up to 6000 psi maximum pressure.
• Secure and flush installation with a flat, undercut head and 90° countersink angle, minimizing protrusion and preventing snagging in tight spaces.
• Consistent and precise threading with a Class 6g fit and coarse M3 x 0.5 mm thread, ensuring easy assembly and strong holding power in various materials.
• Broad industrial compliance meeting DIN 965 specifications, RoHS 3, and REACH regulations, guaranteeing safety and environmental responsibility.
• High tensile strength of 70,000 psi, providing durability and resistance to loosening under vibration or heavy loads.
• Convenient drive engagement with a Phillips No. 1 drive, allowing for efficient installation with common tools without slippage.

Professional Applications & Engineering Value

This M3 flat head sealing screw is engineered to address critical challenges in industrial settings where leakage, corrosion, and component failure are major concerns. The combination of 316 Stainless Steel and a Viton® O-ring ensures long-term performance in aggressive environments, such as chemical processing, marine equipment, and high-temperature machinery. The fully threaded design with a coarse metric thread provides excellent grip and vibration resistance, while the undercut flat head allows for a clean, flush finish that meets DIN 965 standards. Ideal for applications in valves, pumps, and enclosures, this screw delivers reliable sealing capability under pressures up to 6000 psi, reducing maintenance downtime and enhancing system integrity for B2B buyers in demanding sectors.

Specification Summary & Compliance

This screw features precise metric threading with an M3 x 0.5 mm coarse thread and Class 6g fit for consistent dimensional accuracy. It is manufactured in compliance with DIN 965 specifications and adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use. The fully threaded design and specified maximum hole diameter of 3.454 mm support reliable installation across various applications.