S-98029A054 0.781" ID x 1.875" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from black-oxide steel surface treatment, extending service life in demanding environments
• Optimal load distribution with precise 1.875" outer diameter, preventing surface damage and maintaining joint integrity
• Perfect fit for 3/4" fasteners thanks to accurate 0.781" inner diameter, ensuring secure installation and vibration resistance
• Enhanced durability through robust 0.230-0.255" thickness, providing reliable performance under heavy mechanical stress
• Environmental compliance assurance with RoHS 3 and REACH certification, meeting global regulatory standards for industrial applications
• Wide industrial compatibility with inch measurement system, facilitating seamless integration into existing North American equipment and machinery

Professional Applications & Engineering Value

This black-oxide steel flat washer delivers critical engineering solutions where corrosion resistance and reliable load distribution are paramount. The black-oxide surface treatment creates a protective barrier against moisture and chemical exposure, significantly extending component life in outdoor equipment, automotive assemblies, and industrial machinery. With precise 0.781" ID and 1.875" OD dimensions, it ensures perfect alignment with 3/4" screws while distributing clamping force evenly to prevent surface deformation and maintain joint integrity under vibration and dynamic loads. The substantial 0.230-0.255" thickness provides the structural rigidity needed for heavy-duty applications, making it ideal for construction equipment, agricultural machinery, and manufacturing systems where failure is not an option.

Specification Summary & Compliance

Manufactured to standard inch system dimensions with 0.781" inner diameter, 1.875" outer diameter, and 0.230-0.255" thickness range specifically engineered for 3/4" screws. This flat washer features black-oxide steel construction for enhanced corrosion protection. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations current as of January 17, 2023, ensuring environmental responsibility and global market acceptance.