S-91122A145 1.313" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Enhanced load distribution due to the 2" square design, reducing surface pressure and preventing material damage.
• Precise fit for 1 1/4" screws with a 1.313" inner diameter, ensuring secure and stable fastening.
• Consistent thickness control (0.235-0.265") for uniform performance and reliable gap filling in assemblies.
• High durability with Rockwell B70 hardness, resisting deformation under heavy loads.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use.
• Broad compatibility with inch-system components, simplifying sourcing for various industrial applications.

Professional Applications & Engineering Value

This 18-8 stainless steel square washer is engineered to address common challenges in industrial fastening, such as corrosion, vibration loosening, and surface damage. Its square shape provides a larger bearing surface compared to round washers, effectively distributing load and minimizing stress on connected materials. The corrosion-resistant properties make it suitable for outdoor, marine, and chemical processing applications, where moisture and chemicals are prevalent. With precise dimensions tailored for 1 1/4" screw size, it ensures a snug fit, reducing the risk of misalignment and enhancing the longevity of assemblies in heavy-duty machinery, construction, and infrastructure projects.

Specification Summary & Compliance

This washer features an inner diameter of 1.313", width of 2", and thickness range of 0.235-0.265", manufactured to inch system standards for accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use. The Rockwell B70 hardness confirms its ability to withstand mechanical stress without compromising performance.