S-90483A178 6.4 mm ID x 11 mm OD DIN 433 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc yellow-chromate plating, extending service life in harsh environments
• Exceptional mechanical strength from Rockwell C38 hardened steel, resisting deformation under high loads
• Precise dimensional accuracy with 6.4mm ID and 11mm OD ensuring perfect fit for M6 screws
• Optimized load distribution through 1.4-1.8mm thickness, preventing surface damage and loosening
• Guaranteed interchangeability with strict DIN 433 standard compliance for reliable assembly processes
• Environmental responsibility through full RoHS 3 and REACH compliance, meeting global regulatory requirements
• Versatile industrial application across machinery, automotive, and construction sectors due to metric system compatibility

Professional Applications & Engineering Value

This M6 flat washer delivers critical engineering solutions through its zinc yellow-chromate plated steel construction, specifically designed to combat galvanic corrosion and chemical degradation in industrial settings. The Rockwell C38 hardness ensures maintained clamping force under vibration and thermal cycling, while the precise 1.4-1.8mm thickness provides optimal spring tension to prevent joint relaxation. Engineers specify these DIN 433 compliant washers for automotive assemblies, electrical enclosures, and heavy machinery where corrosion resistance and dimensional stability are paramount. The metric flat washer design guarantees seamless integration with M6 fastening systems, reducing assembly time and improving maintenance efficiency across manufacturing and infrastructure projects.

Specification Summary & Compliance

Manufactured to DIN 433 standards with precise internal diameter of 6.4mm and outer diameter of 11mm, this flat washer maintains consistent dimensional tolerances for reliable performance. The zinc yellow-chromate plated steel construction provides both corrosion protection and aesthetic finish. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and global market acceptance for industrial applications.