S-90313A112 0.344" ID x 2" 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 load distribution with a 2" outer diameter, minimizing surface pressure and preventing damage to connected materials.
• Accurate fit for 5/16" screws with a 0.344" inner diameter, ensuring secure fastening and reducing assembly time.
• Consistent thickness (0.055-0.069") provides reliable performance and uniform spacing in repetitive applications.
• Compliance with RoHS 3 and REACH regulations guarantees safe, environmentally responsible use in global markets.
• Durable, non-magnetic properties maintain integrity in electrical and marine settings without interference.
• Versatile inch system compatibility for seamless integration with standard machinery and equipment.

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 offers excellent resistance to rust and chemicals, making it suitable for marine, chemical processing, and food-grade applications. The precise 0.344" ID and 2" OD ensure optimal alignment with 5/16" screws, reducing the risk of loosening under vibration and extending the lifespan of assemblies. By providing a stable, corrosion-resistant barrier, this washer minimizes maintenance needs and enhances the reliability of heavy-duty equipment, structural frameworks, and machinery in demanding environments.

Specification Summary & Compliance

This flat washer adheres to standard inch measurement tolerances, with an inner diameter of 0.344", outer diameter of 2", and thickness range of 0.055-0.069" for consistent performance. It is manufactured to meet general industrial specifications for fit with 5/16" screw sizes. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances and safe for various industrial and international applications.