S-97725A278 39 mm ID x 47.5 mm OD Metal Sealing Washers

Key Features & Benefits at a Glance

• Lightweight aluminum construction reduces overall assembly weight while maintaining structural integrity
• Excellent corrosion resistance ensures long-term reliability in various environmental conditions
• Precise dimensional tolerances (39mm ID x 47.5mm OD) guarantee perfect fit for M36 screw applications
• Optimized load distribution across the 2.8-3.2mm thickness range prevents surface damage and loosening
• Full regulatory compliance with RoHS 3 and REACH standards for international market acceptance
• Cost-effective solution combining aluminum's durability with manufacturing efficiency
• Versatile industrial application suitable for various mechanical assemblies and metric fastening systems

Professional Applications & Engineering Value

This M36 metric aluminum flat washer delivers exceptional engineering value through its lightweight aluminum construction and precision dimensions. The 39mm inner diameter ensures perfect compatibility with M36 fasteners, while the 47.5mm outer diameter provides optimal surface coverage to prevent embedding and distribute loads effectively. The 2.8-3.2mm thickness range offers consistent performance in applications requiring vibration resistance and uniform pressure distribution. The aluminum material naturally resists corrosion, making it ideal for industrial assemblies where weight reduction and environmental durability are critical. These metric flat washers solve common engineering challenges by combining lightweight properties with reliable performance in mechanical systems, electrical enclosures, and transportation equipment where corrosion resistance and regulatory compliance are mandatory.

Specification Summary & Compliance

This metric flat washer features precise dimensional specifications with 39mm inner diameter, 47.5mm outer diameter, and 2.8-3.2mm thickness range, engineered for M36 screw applications. The product maintains standard metric tolerances and is manufactured from high-quality aluminum alloy. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and international market acceptance, meeting the latest substance restriction requirements as of June 14, 2023.