S-90313A116 0.406" ID x 2" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh environments and extended service life
• Precise dimensional fit with 0.406" ID specifically designed for 3/8" screws, ensuring secure fastening and load distribution
• Enhanced surface coverage with 2" outer diameter, providing excellent bearing surface and preventing material embedment
• Consistent thickness control (0.055-0.069") for uniform pressure distribution and reliable performance under varying loads
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global industrial applications
• Excellent durability from stainless steel material, maintaining performance in demanding mechanical assemblies
• Versatile inch system compatibility for seamless integration with existing industrial equipment and fastening systems

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer delivers exceptional engineering value through its balanced combination of corrosion resistance and mechanical reliability. The 0.406" inner diameter provides precise alignment with 3/8" screws, eliminating play and ensuring proper clamp load distribution. The generous 2" outer diameter creates an optimal bearing surface that prevents bolt head or nut embedment into softer materials, solving common surface damage issues in assembly applications. Manufactured from 18-8 stainless steel, these washers resist oxidation and chemical degradation in industrial environments, making them ideal for outdoor equipment, marine applications, food processing machinery, and chemical processing plants where moisture and corrosive elements are present. The controlled thickness range ensures consistent performance across production runs, supporting quality control in manufacturing operations.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.406" ID and 2" OD, specifically engineered for use with 3/8" screws. The thickness is maintained within 0.055-0.069" tolerance for consistent performance. Manufactured from 18-8 stainless steel, the product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components. The washer is designed to provide reliable performance in various mechanical assemblies while adhering to international regulatory requirements.