S-98370A117 0.812" ID x 3" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• Exceptional load distribution from the large 3" outer diameter, preventing surface damage and maintaining joint integrity
• Precision fit for 3/4" screws with 0.812" inner diameter, ensuring secure fastening and reducing installation errors
• Enhanced durability with Rockwell B68 hardness, providing long-lasting performance under high-stress conditions
• Consistent thickness control (0.110-0.140") for uniform pressure distribution and reliable sealing capabilities
• Full regulatory compliance with RoHS 3 and REACH standards, meeting global environmental and safety requirements
• Versatile inch system compatibility for seamless integration with existing industrial equipment and fastening systems

Professional Applications & Engineering Value

This heavy-duty flat washer delivers critical engineering value in demanding applications where corrosion resistance and load distribution are paramount. The 18-8 stainless steel composition effectively combats chemical exposure and atmospheric corrosion, making it ideal for marine equipment, food processing machinery, and chemical plant installations. The precise 3" OD and 0.812" ID dimensions create optimal bearing surface area for 3/4" screw size applications, preventing bolt head embedding and material deformation. With controlled thickness variations and Rockwell B68 hardness, this washer maintains consistent performance in vibration-prone assemblies, structural connections, and heavy machinery where fastener integrity cannot be compromised.

Specification Summary & Compliance

This inch system flat washer features precision dimensions with 3" outer diameter, 0.812" inner diameter, and thickness range of 0.110-0.140" specifically engineered for 3/4" screw applications. Manufactured from 18-8 stainless steel with Rockwell B68 hardness rating, the product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance compliance for industrial markets worldwide.