S-91090A100 0.141" ID x 0.625" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh environments
• Precise dimensional compatibility with 0.141" ID ensuring perfect fit for No. 6 screws without play or misalignment
• Optimal load distribution across 0.625" OD surface area to prevent surface damage and component fatigue
• Reliable spacing capability with consistent 0.027-0.035" thickness for maintaining proper component separation
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing applications
• Durable steel core material providing structural integrity under mechanical stress and vibration
• Standard inch sizing for seamless integration with existing imperial measurement systems and tooling

Professional Applications & Engineering Value

These zinc-plated steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The zinc plating creates a protective barrier against moisture and chemical exposure, significantly extending component life in industrial environments. With exact 0.141" ID specifications for No. 6 screws, these washers eliminate installation issues caused by improper fit, while the 0.625" OD provides optimal surface coverage for distributing clamp loads and preventing embedding in softer materials. This combination of precise inch sizing, durable steel construction, and protective finish makes them ideal for automotive assemblies, electrical enclosures, machinery frames, and outdoor equipment where reliable load distribution and long-term performance are essential.

Specification Summary & Compliance

This flat washer features precise dimensional specifications with 0.625" outer diameter, 0.141" inner diameter, and thickness ranging 0.027-0.035" for consistent performance. Manufactured to standard inch measurements compatible with No. 6 screws, these components maintain dimensional accuracy across production batches. The washers are fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, including the latest SVHC updates, ensuring they meet international environmental and safety requirements for industrial applications worldwide.