S-97725A242 3.2 mm ID x 6.4 mm OD Metal Sealing Washers

Key Features & Benefits at a Glance

• Excellent electrical conductivity for reliable performance in electrical circuits and grounding applications
• Superior corrosion resistance ensuring long-term durability in humid or demanding environments
• Precise M3 screw compatibility with a 3.2mm inner diameter for secure, vibration-resistant fastening
• Optimized sealing capability with a 6.4mm outer diameter and 0.6-0.9mm thickness range for effective fluid and gas containment
• Manufactured from high-purity copper offering malleability for a tight seal and consistent performance under compression
• Full compliance with RoHS 3 and REACH environmental standards, ensuring safety for industrial and consumer applications
• Versatile metric sizing for seamless integration into global engineering designs and replacement part inventories

Professional Applications & Engineering Value

This M3 metric flat washer made from copper provides critical solutions in industries where electrical performance and environmental resilience are paramount. Its inherent conductivity makes it ideal for electrical assemblies, circuit boards, and grounding systems, preventing energy loss and overheating. In plumbing and automotive applications, the washer's malleability and corrosion resistance ensure a reliable seal against fluids and gases, even under thermal cycling and vibration. The precise 3.2mm ID and 6.4mm OD dimensions guarantee a perfect fit for M3 screws, distributing load evenly and preventing loosening. By combining material advantages with exact metric specifications, this component reduces maintenance needs and enhances the longevity of assembled products in harsh operational conditions.

Specification Summary & Compliance

This flat washer conforms to standard metric dimensions with an inner diameter of 3.2mm, outer diameter of 6.4mm, and thickness ranging from 0.6mm to 0.9mm, designed specifically for M3 screw sizes. The copper material is selected for its functional properties without a specified hardness rating. Manufacturing and material compliance are assured through adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances and commitment to environmental safety standards for industrial use.