S-97725A122 20.2 mm ID x 25.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior electrical conductivity due to high-purity copper construction, ensuring reliable performance in electrical systems
• Excellent corrosion resistance for extended service life in harsh industrial and plumbing environments
• Precise dimensional accuracy with 20.2mm ID and 25.9mm OD ensuring perfect fit for M20 screw applications
• Optimized sealing performance through controlled 1.3-1.7mm thickness range for effective gasketing applications
• Guaranteed compliance with DIN 7603 standards, providing assurance of manufacturing quality and dimensional consistency
• Enhanced durability through copper's natural malleability, allowing for effective compression and reusability
• Versatile application capability across electrical, plumbing, and industrial systems requiring reliable sealing and conductivity

Professional Applications & Engineering Value

These M20 metric flat washers manufactured from premium copper material provide critical solutions for engineering applications where both electrical conductivity and sealing performance are paramount. The copper construction naturally resists corrosion while maintaining excellent thermal and electrical properties, making these DIN 7603 washers ideal for electrical grounding systems, transformer connections, and high-temperature plumbing applications. The precise dimensional control (20.2mm ID x 25.9mm OD) ensures proper fitment on M20 fasteners, preventing loosening while the controlled thickness range allows for optimal compression in gasketing scenarios. These copper flat washers effectively address common industrial challenges including galvanic corrosion, thermal expansion mismatches, and electrical continuity requirements in demanding environments.

Specification Summary & Compliance

These metric flat washers feature precise dimensional specifications with 20.2mm inner diameter, 25.9mm outer diameter, and 1.3-1.7mm thickness range. Manufactured in full compliance with DIN 7603 standards, ensuring dimensional accuracy and manufacturing consistency. The washers are produced from high-quality copper material and are suitable for applications requiring RoHS and REACH compliance. The standardized dimensions guarantee proper fitment with M20 screw sizes and reliable performance in various industrial, electrical, and plumbing applications where corrosion resistance and electrical conductivity are essential requirements.