S-90377A215 1.062" ID x 3" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel with black-oxide coating, ideal for harsh industrial environments
• Optimal load distribution with large 3" OD surface area, preventing surface damage and joint loosening
• Precise fit for 1" screws with 1.062" ID, ensuring secure fastening and vibration resistance
• Enhanced durability through 0.150-0.220" thickness range, providing reliable performance under heavy loads
• Compliance with strict regulations including RoHS 3 and REACH, meeting global industrial safety standards
• Excellent chemical resistance from stainless steel construction, maintaining integrity in corrosive applications
• Versatile inch system compatibility for seamless integration with existing industrial equipment and standards

Professional Applications & Engineering Value

This heavy-duty flat washer delivers exceptional engineering value through its black-oxide 18-8 stainless steel construction, specifically engineered to address common industrial challenges. The combination of corrosion-resistant material and precise inch dimensions makes it ideal for demanding applications where environmental factors and vibration are concerns. The flat washer design with substantial outer diameter effectively distributes clamping force, preventing surface damage and maintaining joint integrity in heavy machinery, structural steel connections, and outdoor equipment. The black-oxide surface treatment provides additional protection while maintaining dimensional stability, ensuring reliable performance in chemical processing plants, marine environments, and industrial manufacturing where 1" screw applications require durable, long-lasting fastening solutions.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 1.062" inner diameter, 3" outer diameter, and thickness range of 0.150-0.220" designed specifically for 1" screw applications. Manufactured from 18-8 stainless steel with black-oxide coating, the washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial compliance standards are met for global distribution and use in regulated industries.