S-97725A239 2.2 mm ID x 5.6 mm OD Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior electrical conductivity thanks to pure copper construction, ensuring reliable performance in electrical assemblies and grounding applications.
• Excellent corrosion resistance for long-lasting durability in harsh or humid industrial environments.
• Precise dimensional fit with 2.2mm ID and 5.6mm OD, designed specifically for M2 screws to prevent loosening and ensure secure fastening.
• Optimized thickness range (0.6-0.9mm) provides flexibility for effective sealing and load distribution under varying compression forces.
• Full compliance with RoHS 3 and REACH environmental standards, meeting strict regulatory requirements for safe use in global markets.
• Enhanced sealing performance as a flat washer, ideal for creating tight, conductive seals in electronic and mechanical assemblies.
• Cost-effective maintenance solution due to copper's non-galling properties and reusability in many applications.

Professional Applications & Engineering Value

These M2 copper flat washers are engineered to address critical challenges in precision assemblies where electrical conductivity and corrosion resistance are paramount. The copper material ensures minimal electrical resistance, making them ideal for grounding applications, battery contacts, and electronic sealing in PCB and connector systems. Their metric flat washer design with precise inner and outer diameters prevents short circuits by maintaining consistent contact pressure, while the copper's malleability allows for effective sealing against fluids and gases. This combination solves common issues like galvanic corrosion and poor electrical paths in industrial equipment, automotive electronics, and telecommunications hardware, ensuring long-term reliability and reduced maintenance costs.

Specification Summary & Compliance

This flat washer conforms to standard metric dimensions with an inner diameter of 2.2mm, outer diameter of 5.6mm, and thickness ranging from 0.6mm to 0.9mm, ensuring compatibility with M2 screw sizes. Manufactured from high-purity copper, it meets general industrial fit and function requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates, confirming its adherence to environmental and safety standards for restricted substances.