S-90183A218 0.165" ID x 0.438" OD Washers for Blind Rivets

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Precise dimensional fit with 0.165" ID and 0.438" OD ensures perfect alignment with 5/32" rivets for reliable assembly performance
• Optimal load distribution through controlled 0.057-0.067" thickness range, preventing surface damage and maintaining joint integrity
• Environmental compliance assurance with full RoHS 3 and REACH compliance, meeting global regulatory standards for industrial applications
• Enhanced durability through zinc plating that provides sacrificial protection against rust and environmental degradation
• Universal compatibility with inch measurement system for seamless integration into North American industrial specifications
• Reliable performance in various assembly applications where consistent spacing and surface protection are critical

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver exceptional engineering value in industrial fastening systems where corrosion resistance and dimensional precision are paramount. The zinc plating creates a protective barrier that significantly extends service life in humid or chemically aggressive environments, addressing common failure points in industrial assembly applications. Specifically engineered for 5/32" rivet installations, these flat washers provide consistent spacing and surface protection while distributing load forces evenly across joined surfaces. This prevents material deformation and maintains structural integrity in metal fabrication, machinery assembly, and electrical enclosure applications where vibration resistance and long-term reliability are critical performance requirements.

Specification Summary & Compliance

Manufactured to precise dimensional standards with inner diameter of 0.165", outer diameter of 0.438", and thickness range of 0.057-0.067" specifically designed for 5/32" rivet applications. These flat washers maintain inch system measurements and feature zinc-plated steel construction. Full compliance with RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element in steel and REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant, ensuring adherence to international environmental and safety standards for industrial components.