S-98023A113 0.188" ID x 0.438" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating that protects against rust and extends service life in harsh environments
• Exceptional load distribution due to precise dimensions (0.188" ID x 0.438" OD) that prevent surface damage and maintain joint integrity
• High-strength Grade 8 construction ensures reliable performance under heavy loads and vibration in demanding applications
• Industry-standard compliance with ASME B18.21.1 specifications for consistent quality and interchangeability
• Environmental and safety compliance with RoHS 3 and REACH regulations, ensuring safe use in various industries
• Optimized for No. 8 screws providing secure fastening and reducing the risk of loosening in mechanical assemblies
• Durable steel material offers excellent mechanical properties for long-term reliability in industrial settings

Professional Applications & Engineering Value

This Grade 8 SAE flat washer is engineered to address critical challenges in industrial fastening, such as corrosion-induced failure and uneven load distribution. Made from zinc yellow-chromate plated steel, it provides a robust barrier against moisture and chemicals, significantly reducing maintenance needs in automotive, machinery, and construction applications. The precise 0.188" ID and 0.438" OD dimensions ensure a perfect fit for No. 8 screw sizes, minimizing stress concentrations and enhancing the longevity of assembled components. By complying with ASME B18.21.1 standards, this washer delivers consistent performance, making it ideal for heavy-duty scenarios where reliability and compliance are paramount.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.188", outer diameter of 0.438", and thickness ranging from 0.036" to 0.065", designed for use with No. 8 screws in inch measurement systems. It conforms to ASME B18.21.1 specifications, ensuring dimensional accuracy and performance reliability. Additionally, the product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety standards for industrial use.