S-90313A246 0.125" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel ensures long-term reliability in humid, chemical, or outdoor environments.
• Precise dimensional fit with 0.125" ID and 1.5" OD provides secure seating and even load distribution for No. 4 screws.
• Enhanced durability due to the robust stainless steel construction, resisting deformation under pressure.
• Consistent thickness range of 0.050" to 0.080" allows for reliable performance in varied assembly tolerances.
• Compliance with global standards including RoHS 3 and REACH, ensuring safe use in regulated industrial applications.
• Versatile application support for machinery, electronics, and construction where flat washers are critical.
• Easy integration with standard inch-system components, simplifying procurement and assembly processes.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges such as corrosion, loosening under vibration, and uneven stress distribution. Its high-grade material provides excellent resistance to rust and oxidation, making it ideal for harsh environments like marine, chemical processing, and outdoor equipment. The precise 1.5" OD and 0.125" ID ensure a perfect fit for No. 4 screw installations, preventing bolt head embedment and surface damage. By distributing loads evenly, it reduces the risk of joint failure, enhancing the longevity of assemblies in industrial machinery, electronic enclosures, and structural frameworks. The flat design and consistent thickness contribute to reliable performance in high-vibration settings, ensuring secure fastening over time.

Specification Summary & Compliance

This flat washer adheres to standard inch measurement specifications, with an inner diameter of 0.125", outer diameter of 1.5", and thickness ranging from 0.050" to 0.080". It is designed for use with No. 4 screw sizes and manufactured from 18-8 stainless steel for general-purpose applications. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial safety standards. While hardness is not rated, the material provides reliable performance in typical fastening scenarios without specific strength classifications.