S-90481A138 0.812" ID x 3.25" OD Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance due to the galvanized steel material, ensuring long-term reliability in harsh industrial environments.
• Optimal load distribution with a 3.25" outer diameter, reducing stress and preventing surface damage on connected materials.
• Precise fit for 3/4" screws with a 0.812" inner diameter, ensuring secure fastening and minimizing loosening risks.
• Durable construction with a thickness range of 0.108-0.140", providing consistent performance under heavy-duty applications.
• Compliance with environmental standards including RoHS 3 and REACH, making it safe for use in regulated industries.
• Versatile inch system compatibility for seamless integration with existing industrial equipment and fastening systems.
• Enhanced mechanical stability in assemblies, thanks to the flat washer design that maintains bolt tension and integrity.

Professional Applications & Engineering Value

This galvanized steel flat washer is engineered to address common industrial challenges such as corrosion-induced failure and uneven load-bearing. The zinc coating provides a protective barrier against moisture and chemicals, extending the lifespan of fasteners in outdoor or high-humidity settings like construction, machinery, and infrastructure projects. Its large 3.25" OD effectively disperses pressure, preventing surface indentation and ensuring stable connections in heavy-duty applications. By using this washer, engineers can achieve reliable performance in industrial washers systems, reducing maintenance needs and enhancing safety in mechanical assemblies where load distribution is critical.

Specification Summary & Compliance

This flat washer features precise dimensions with an inner diameter of 0.812" and outer diameter of 3.25", designed for use with 3/4" screw size in inch-based systems. It adheres to standard manufacturing practices for flat washers and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for various industrial applications.