S-91122A125 0.688" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Exceptional load distribution due to the 2" square design, minimizing surface pressure and preventing material damage.
• Precise fit and secure fastening with a 0.688" inner diameter, engineered specifically for 5/8" screw sizes to reduce loosening.
• Enhanced durability and deformation resistance from Rockwell B83 hardness, ensuring long-term performance under heavy loads.
• Reliable thickness consistency between 0.235" and 0.265", providing uniform clamping force and assembly stability.
• Compliance with global environmental standards, including RoHS 3 and REACH, for safe and sustainable use in regulated industries.
• Broad compatibility with inch-system fasteners, simplifying sourcing and integration into existing assemblies.

Professional Applications & Engineering Value

This heavy-duty square washer is engineered to address common industrial challenges such as corrosion, vibration-induced loosening, and uneven load distribution. Manufactured from 18-8 stainless steel, it provides excellent resistance to rust and chemical exposure, making it suitable for demanding environments like construction, machinery, and marine applications. The square shape offers a larger surface area compared to round washers, effectively distributing pressure and preventing embedding into soft materials. With a precise 0.688" ID for 5/8" screw sizes, it ensures a snug fit that maintains bolt alignment and reduces maintenance needs. Its Rockwell B83 hardness further enhances wear resistance, delivering reliable performance in high-stress assemblies and extending the lifespan of connected components.

Specification Summary & Compliance

This washer meets standard inch-system dimensional tolerances, with an inner diameter of 0.688" and thickness ranging from 0.235" to 0.265". It is manufactured in accordance with industry-accepted specifications for square washers and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial applications.