S-97725A218 20.2 mm ID x 23.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality aluminum construction, extending service life in harsh environments
• Lightweight durability that reduces overall assembly weight without compromising structural integrity
• Precise dimensional control with 20.2mm ID and 23.9mm OD ensuring perfect fit for M20 screw applications
• Optimized load distribution through consistent 1.3-1.7mm thickness range, preventing surface damage
• Guaranteed standardization with DIN 7603 compliance for reliable interchangeability across metric systems
• Environmental compliance with RoHS 3 certification, meeting strict EU regulatory requirements
• Versatile industrial application across multiple sectors due to aluminum's excellent conductivity and non-magnetic properties

Professional Applications & Engineering Value

This M20 metric aluminum flat washer delivers exceptional engineering value through its specialized material properties and DIN 7603 standard compliance. The aluminum construction provides inherent corrosion resistance, making it ideal for outdoor equipment, electrical enclosures, and marine applications where moisture exposure is common. The precise 20.2mm inner diameter ensures secure seating on M20 fasteners while the 23.9mm outer diameter maximizes bearing surface area, effectively distributing clamp load and preventing joint loosening under vibration. The controlled 1.3-1.7mm thickness range maintains consistent performance in assemblies requiring precise spacing or gap filling. These metric specification washers solve critical challenges in weight-sensitive applications like aerospace components and transportation equipment, where aluminum's lightweight characteristics reduce overall mass without sacrificing reliability.

Specification Summary & Compliance

This flat washer meets DIN 7603 dimensional standards with precise metric measurements: 20.2mm inner diameter, 23.9mm outer diameter, and 1.3-1.7mm thickness range. Manufactured from aluminum for specific industrial applications requiring lightweight and corrosion-resistant properties. The product is fully RoHS 3 (2015/863/EU) compliant, containing no restricted hazardous substances, and is engineered for use with M20 screw sizes in metric fastening systems.