S-90481A284 0.938" ID x 3.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Optimal load distribution thanks to the large 3.5" outer diameter, preventing surface damage and joint loosening
• Precise fit for 7/8" screws with 0.938" inner diameter, ensuring secure fastening and reducing installation errors
• Enhanced durability from the 0.108-0.160" thickness range, providing reliable performance under heavy loads
• Global compliance assurance meeting RoHS 3 and REACH standards for safe, environmentally responsible sourcing
• Versatile inch system compatibility designed for seamless integration with standard industrial equipment and components
• Cost-effective maintenance through long-lasting material quality, minimizing replacement frequency and downtime

Professional Applications & Engineering Value

This heavy-duty flat washer delivers critical engineering value by addressing common industrial fastening challenges. The zinc-plated steel material provides excellent corrosion resistance, making it ideal for outdoor machinery, construction equipment, and manufacturing systems exposed to moisture or chemicals. Its generous 3.5" outer diameter effectively distributes clamping force over a wider area, preventing surface indentation and maintaining structural integrity in high-vibration applications. The precise 0.938" inner diameter ensures perfect alignment with 7/8" screws, reducing assembly time and improving joint reliability. These industrial washers serve as essential components in heavy machinery, structural steel connections, and automotive assemblies where durability and consistent performance are paramount.

Specification Summary & Compliance

This flat washer features inch system dimensions with 3.5" outer diameter, 0.938" inner diameter, and thickness ranging 0.108-0.160". Manufactured from zinc-plated steel for consistent performance, it is specifically designed for use with 7/8" screw size applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial procurement requirements.