S-90313A200 0.203" ID x 0.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Precise dimensional fit with 0.203" ID and 0.5" OD ensures reliable performance and load distribution for No. 10 screws.
• Consistent thickness control (0.033-0.047") provides uniform pressure distribution and prevents fastener loosening.
• Excellent durability and longevity due to the inherent strength and non-magnetic properties of 18-8 stainless steel.
• Full RoHS 3 and REACH compliance guarantees environmental safety and meets stringent international regulatory standards.
• Broad industrial compatibility with inch-system fasteners, suitable for machinery, equipment assembly, and structural applications.
• Reliable performance in demanding conditions, resisting rust and chemical exposure for long-term operational integrity.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Flat Washer is engineered to address common industrial challenges such as corrosion-induced failure and uneven load distribution. Its stainless steel material provides exceptional resistance to rust, chemicals, and extreme temperatures, making it ideal for outdoor equipment, marine hardware, food processing machinery, and chemical plant assemblies. The precise 0.203" ID and 0.5" OD dimensions, combined with controlled thickness, ensure a perfect fit for No. 10 screw size applications, preventing bolt slippage and distributing clamp load effectively. This enhances joint integrity, reduces maintenance frequency, and supports reliable performance in high-vibration and corrosive environments, delivering long-term cost savings and operational safety.

Specification Summary & Compliance

This flat washer conforms to standard inch-system dimensions with an inner diameter of 0.203", outer diameter of 0.5", and thickness ranging from 0.033" to 0.047", specifically designed for No. 10 screw size. Manufactured from 18-8 Stainless Steel, it offers consistent mechanical properties without a rated hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and meets current environmental and safety standards for industrial use.