S-92217A545 0.531" ID x 1.25" OD ASME B18.21.1 ASME 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 1.25" outer diameter (OD), effectively preventing surface damage and joint loosening.
• Accurate fit for 1/2" fasteners ensured by the 0.531" inner diameter (ID), providing reliable assembly and vibration resistance.
• Consistent performance and durability with a controlled thickness range of 0.090" to 0.112", maintaining uniform pressure.
• Guaranteed dimensional reliability through compliance with the ASME B18.21.1 standard for flat washers.
• Environmentally responsible manufacturing with full compliance to RoHS 3 and REACH regulations.
• Broad industrial compatibility for use in machinery, construction, and marine applications requiring dependable, long-lasting fastening solutions.

Professional Applications & Engineering Value

These 18-8 stainless steel flat washers are engineered to address common industrial challenges such as corrosion-induced failure and vibration loosening. The robust material provides excellent resistance to rust and chemicals, making them suitable for demanding environments like marine equipment, food processing machinery, and outdoor structural assemblies. The precise 0.531" ID and 1.25" OD dimensions ensure a perfect fit for 1/2" screws, distributing clamp load evenly to prevent surface indentation and maintain bolt tension under dynamic loads. By conforming to ASME B18.21.1, these washers deliver consistent performance in critical applications, reducing maintenance needs and enhancing the longevity of your mechanical systems.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.531", outer diameter of 1.25", and thickness ranging from 0.090" to 0.112", designed for use with 1/2" screw sizes. Manufactured in accordance with the ASME B18.21.1 standard, it ensures dimensional accuracy and functional reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety requirements for industrial components.