S-93852A155 2.125" ID x 4.5" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• Exceptional load distribution with large 4.5" outer diameter, preventing surface damage and maintaining joint integrity under heavy loads
• Precise fit for 2" screw applications with 2.125" inner diameter, ensuring secure fastening and reducing installation time
• Rugged durability with substantial 0.153-0.213" thickness, providing long-lasting performance in demanding mechanical applications
• Guaranteed dimensional accuracy through compliance with ASME B18.21.1 standards, ensuring consistent quality and reliable performance
• Environmental compliance assurance with RoHS 3 and REACH compliance, making them suitable for regulated industries and global supply chains
• Versatile industrial application as USS flat washers designed for heavy machinery, structural steel, and construction projects

Professional Applications & Engineering Value

This heavy-duty USS flat washer delivers exceptional engineering value in demanding industrial settings where corrosion resistance and load distribution are critical. The 18-8 stainless steel composition provides excellent protection against rust and chemical degradation, making these industrial washers ideal for marine environments, chemical processing plants, and outdoor construction projects. With their substantial 4.5" outer diameter and precise 2.125" inner diameter, these washers effectively distribute clamping force over a larger surface area, preventing material deformation and maintaining joint integrity in structural steel connections, heavy machinery assemblies, and bridge construction. The USS flat washer design specifically addresses the need for reliable vibration resistance and long-term stability in high-stress applications, ensuring your critical connections remain secure through years of service.

Specification Summary & Compliance

This USS flat washer features precise dimensional specifications including 2.125" inner diameter, 4.5" outer diameter, and thickness ranging from 0.153" to 0.213" for compatibility with 2" screw applications. Manufactured in compliance with ASME B18.21.1 standards for dimensional accuracy and performance requirements. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for hazardous substance restrictions.