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A dock washer, also known as a dock plate washer or dock fender washer, is a specific type of washer designed for use in dock and marine applications. These washers are typically large and flat, with a wide outer diameter and a hole in the center. Dock washers are used in various maritime and loading dock scenarios, and their primary purposes include:

  1. Load Distribution: Dock washers are used to distribute the load and force applied to mooring or anchoring hardware, such as bolts and nuts, over a larger surface area. This helps prevent the hardware from digging into the dock or vessel surfaces, reducing damage and enhancing stability.

  2. Corrosion Resistance: Dock washers are often made from materials that are resistant to corrosion, such as stainless steel or galvanized steel, to withstand exposure to water and harsh maritime environments.

  3. Securing Hardware: They are commonly used with cleats, bollards, and other mooring and anchoring equipment to provide a secure and stable connection between a vessel and a dock or pier.

Dock washers come in various sizes and materials, and the choice of washer depends on the specific requirements of the maritime or dock application. They are vital components for ensuring safe and reliable mooring and docking operations for ships and boats.