S-97725A322 30.3 mm ID x 35.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance from cellulose-filled copper construction for longer service life in harsh environments
• Superior electrical conductivity ideal for grounding and electrical applications requiring reliable current transfer
• Precise dimensional accuracy with 30.3mm ID and 35.9mm OD ensuring perfect fit for M30 screws
• DIN 7603 compliance guarantees consistent quality and interchangeability in industrial assemblies
• RoHS 3 environmental compliance meeting strict EU regulations for hazardous substance restrictions
• Optimized load distribution across 2.3-2.7mm thickness to prevent surface damage and fastener loosening
• Reliable performance in demanding applications including heavy machinery, electrical systems, and corrosive environments

Professional Applications & Engineering Value

This M30 metric flat washer delivers exceptional engineering value through its specialized cellulose-filled copper material, which combines the corrosion resistance of copper with improved structural integrity. The DIN 7603 standard compliance ensures precise dimensional control and reliable performance in industrial washers applications where vibration resistance and electrical conductivity are critical. Engineers specify these washers for electrical grounding systems, heavy equipment assemblies, and marine environments where traditional steel washers would corrode. The material's inherent corrosion resistance eliminates galvanic corrosion issues when paired with copper or brass components, while the precise 30.3mm ID provides secure seating on M30 fasteners without slippage during torque application.

Specification Summary & Compliance

This flat washer features precise metric dimensions with 30.3mm inner diameter and 35.9mm outer diameter, manufactured to DIN 7603 specifications for dimensional accuracy and performance consistency. The product maintains RoHS 3 (2015/863/EU) compliance, ensuring it meets the latest European Union restrictions on hazardous substances. The cellulose-filled copper construction provides both mechanical strength and electrical conductivity suitable for industrial and electrical applications requiring reliable performance under demanding conditions.