S-91122A212 0.563" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Optimal load distribution with a 2" square design, preventing surface damage and maintaining joint integrity.
• Precise fit for 1/2" screws with a 0.563" inner diameter, reducing installation errors and improving assembly efficiency.
• Enhanced durability backed by Rockwell B84 hardness, resisting deformation under heavy loads.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global markets.
• Heavy-duty performance with a thickness of 0.112-0.128", suitable for high-stress industrial applications.
• Wide compatibility in inch measurement systems, facilitating easy integration with existing equipment.

Professional Applications & Engineering Value

This heavy-duty square washer is engineered to address common industrial challenges like fastener loosening and material degradation. Made from 18-8 stainless steel, it offers excellent corrosion resistance, making it ideal for outdoor machinery, marine equipment, and chemical processing plants where moisture and chemicals are prevalent. The square shape provides a larger bearing surface compared to round washers, effectively distributing load and reducing the risk of embedment into soft materials. With precise dimensions tailored for 1/2" screw applications, it ensures secure fastening in structural assemblies, conveyor systems, and heavy machinery, enhancing safety and reducing maintenance costs. Its robust design withstands vibration and thermal cycling, delivering consistent performance in demanding environments.

Specification Summary & Compliance

This washer features an inner diameter of 0.563" and thickness range of 0.112-0.128", manufactured to standard inch system tolerances for reliable fit. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The 18-8 stainless steel material and Rockwell B84 hardness provide consistent mechanical properties, suitable for various industrial standards and applications requiring durability and environmental safety.