S-97725A307 12.2 mm ID x 17.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Enhanced electrical conductivity for reliable grounding and current transfer in electrical assemblies
• Superior corrosion resistance from cellulose-filled copper material, ensuring long-term performance in harsh environments
• Precise dimensional fit with 12.2mm ID and 17.9mm OD for secure M12 screw seating and even load distribution
• Guaranteed manufacturing consistency through strict adherence to DIN 7603 standards for metric flat washers
• Environmental compliance assurance with RoHS 3 (2015/863/EU) certification for safe use in regulated industries
• Optimized sealing performance with controlled 1.8-2.2mm thickness range for effective gap filling and vibration dampening
• Durable material composition providing excellent thermal and mechanical stability in demanding applications

Professional Applications & Engineering Value

These M12 metric flat washers deliver critical engineering advantages through their specialized cellulose-filled copper construction. The unique material composition addresses common industrial challenges by providing superior electrical conductivity while maintaining structural integrity under compression. This makes them ideal for electrical enclosures, power distribution systems, and automotive electrical components where reliable grounding and current transfer are essential. The DIN 7603 compliance ensures dimensional precision for perfect fit with M12 screw sizes, preventing loosening from vibration and thermal cycling. The copper alloy's natural corrosion resistance combined with cellulose reinforcement creates a durable sealing solution for hydraulic and pneumatic systems, while the RoHS compliant formulation meets stringent environmental regulations without compromising performance in industrial settings.

Specification Summary & Compliance

This metric flat washer features precise dimensions of 12.2mm inner diameter and 17.9mm outer diameter with thickness ranging 1.8-2.2mm, manufactured to DIN 7603 standards for dimensional accuracy and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) environmental directives and is specifically engineered for use with M12 screw sizes in industrial applications requiring consistent electrical and mechanical properties.