S-98370A033 0.531" ID x 1.125" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Exceptional load distribution with a 1.125" outer diameter, minimizing surface stress and preventing material damage.
• Precise fit and secure fastening achieved by the 0.531" inner diameter, perfectly matching 1/2" screws.
• Enhanced durability and deformation resistance from Rockwell B83 hardness, maintaining performance under heavy loads.
• Consistent thickness control (0.105-0.130") for uniform pressure application and reliable assembly repeatability.
• Compliance with strict environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
• Versatile inch system compatibility for seamless integration with existing industrial equipment and standards.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address critical challenges in industrial assemblies where corrosion, vibration, and load stress are common. Its corrosion-resistant properties make it ideal for outdoor machinery, marine equipment, and chemical processing plants, preventing rust-induced failures. The precise 0.531" ID and 1.125" OD ensure optimal load distribution, reducing the risk of joint loosening and surface damage under dynamic forces. With a Rockwell B83 hardness, it withstands repeated stress without deforming, making it a reliable choice for heavy-duty washers in construction, automotive, and manufacturing applications. These precision washers help extend equipment lifespan and minimize maintenance costs in demanding environments.

Specification Summary & Compliance

This flat washer features inch system dimensions with an inner diameter of 0.531", outer diameter of 1.125", and thickness ranging from 0.105" to 0.130", designed for use with 1/2" screws. Manufactured from 18-8 stainless steel with a hardness of Rockwell B83, it meets standard inch measurement requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.