S-98099A035 0.656" ID x 1.375" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with black-oxide steel finish for extended service life in demanding environments
• Precise dimensional fit with 0.656" ID and 1.375" OD ensuring perfect alignment with 5/8" fasteners
• Optimized load distribution through controlled thickness range (0.168-0.193") for enhanced joint integrity
• Regulatory compliance assurance with full RoHS 3 and REACH compliance for global industrial applications
• Durable steel construction providing reliable performance under mechanical stress and vibration
• Inch system compatibility for seamless integration with existing North American industrial equipment
• Versatile industrial application across machinery, construction, and assembly operations

Professional Applications & Engineering Value

Engineered for industrial durability, these black-oxide steel flat washers provide critical corrosion resistance where moisture and environmental factors threaten fastener integrity. The precise 0.656" inner diameter ensures perfect seating on 5/8" fasteners, eliminating misalignment issues during high-volume assembly. With a substantial 1.375" outer diameter, these flat washers distribute clamping forces effectively across wider surfaces, preventing material deformation in soft substrates. The controlled thickness range (0.168-0.193") maintains consistent performance under varying torque requirements, making them ideal for automotive, construction, and heavy machinery applications where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This 5/8" flat washer features inch system dimensions with 0.656" ID and 1.375" OD, manufactured from black-oxide steel with thickness tolerance of 0.168-0.193". The product maintains standard flat washer geometry for optimal load distribution. Compliance includes RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel, and full REACH (EC 1907/2006) compliance with the latest SVHC list (01/17/2023, 233 substances), ensuring regulatory acceptance for industrial applications worldwide.