S-91122A225 16 mm ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• Exceptional load distribution due to the square shape and 50mm width, minimizing surface pressure and preventing material damage.
• Reliable mechanical performance ensured by a Rockwell B84 hardness, providing excellent durability and resistance to deformation under stress.
• Precise fit for M12 metric screws with a 16mm inner diameter, ensuring secure fastening and reducing assembly time.
• Enhanced stability and vibration resistance from the 6.0mm thickness, maintaining joint integrity in dynamic applications.
• Compliance with global environmental standards including RoHS 3 and REACH, making it suitable for regulated industries and export markets.
• Versatile metric sizing for seamless integration into international engineering projects and machinery.

Professional Applications & Engineering Value

This square washer is engineered to address common industrial challenges such as joint loosening and surface indentation. Manufactured from 18-8 Stainless Steel, it offers outstanding corrosion resistance, making it perfect for applications in chemical processing, marine equipment, and food machinery where moisture and corrosive agents are present. The square design provides a larger bearing surface compared to standard round washers, effectively distributing clamp load and preventing bolt head embedment into softer materials. With a precise 16mm ID for M12 screws and a robust 6.0mm thickness, it ensures long-term reliability in heavy-duty assemblies, structural frameworks, and vibrating machinery, reducing maintenance needs and downtime.

Specification Summary & Compliance

This metric square washer features an inner diameter of 16mm, width of 50mm, and thickness of 6.0mm, designed for use with M12 screws. It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B84, ensuring consistent dimensional accuracy. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for global industrial supply chains.