S-97725A313 20.2 mm ID x 23.9 mm OD DIN 7603 Metal Sealing Washers
Metal Sealing Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from cellulose-filled copper construction, extending service life in harsh environments
- Precise dimensional fit with 20.2mm ID and 23.9mm OD ensuring optimal alignment with M20 screws
- Consistent load distribution through controlled 1.8-2.2mm thickness for enhanced joint stability
- Regulatory compliance assurance with full adherence to DIN 7603 manufacturing standards
- Environmental responsibility through RoHS 3 (2015/863/EU) compliance for restricted substance control
- Reliable electrical conductivity inherent to copper alloy composition for grounding applications
- Reduced maintenance frequency due to material durability in industrial operating conditions
Professional Applications & Engineering Value
This M20 metric flat washer delivers critical performance advantages in demanding industrial applications where corrosion resistance and electrical conductivity are paramount. The cellulose-filled copper composition provides exceptional durability against environmental degradation while maintaining consistent electrical properties - making it ideal for electrical grounding systems, marine equipment, and chemical processing installations. Engineered to DIN 7603 specifications, these washers ensure precise dimensional tolerances that prevent loosening under vibration and thermal cycling. The material's inherent anti-galling properties reduce friction during installation, protecting both the washer and mating surfaces in M20 screw applications across automotive, electrical, and heavy machinery sectors.
Specification Summary & Compliance
Manufactured to exact DIN 7603 standards with dimensional specifications including 20.2mm inner diameter, 23.9mm outer diameter, and 1.8-2.2mm thickness range. This flat washer complies with RoHS 3 (2015/863/EU) requirements for hazardous substance restrictions and is specifically engineered for M20 metric screw applications. The cellulose-filled copper material provides consistent performance while meeting international regulatory standards for industrial components.
