S-90940A417 10.5 mm ID x 22 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent visibility and inspection ease due to crystal-clear polycarbonate material, allowing for quick visual checks in assembled applications.
• Reliable dimensional stability with precise 10.5mm ID and 22mm OD, ensuring a perfect fit for M10 screws and consistent performance.
• Superior impact and wear resistance from Rockwell R120 hardness, reducing the risk of cracking or deformation under load.
• Broad thermal compatibility with a maximum temperature resistance of 212°F, making it suitable for various industrial environments.
• Safe for sensitive applications as it is RoHS 3 and REACH compliant, free from hazardous substances and ideal for electronics or food-related industries.
• Lightweight and non-corrosive properties of polycarbonate plastic, preventing galvanic corrosion and reducing overall assembly weight.
• Cost-effective maintenance with durable material that resists chemicals and UV exposure, extending service life in demanding conditions.

Professional Applications & Engineering Value

This M10 clear polycarbonate flat washer is engineered to address common industrial challenges such as corrosion, electrical insulation, and visual monitoring needs. The polycarbonate plastic construction offers high strength and transparency, enabling easy inspection without disassembly in machinery, electronic enclosures, or automotive assemblies. Its metric dimensions and precise inner diameter ensure secure fastening with M10 screws, reducing loosening from vibrations. The material's inherent electrical insulation and resistance to moisture make it ideal for applications in electrical systems, while the high-temperature tolerance up to 212°F supports use in environments with thermal fluctuations. By combining durability with regulatory compliance, this washer minimizes downtime and enhances safety in industrial washers and fastener systems.

Specification Summary & Compliance

This flat washer adheres to metric system standards with an inner diameter of 10.5mm, outer diameter of 22mm, and thickness ranging from 1.4-1.8mm, designed for M10 screw sizes. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence. The material, polycarbonate plastic with Rockwell R120 hardness, provides consistent performance and is suitable for applications requiring high clarity and durability.