Bracket

In shipping, a bracket can refer to a metal or plastic support or mounting device that is used to secure or attach equipment or cargo to a vessel, such as a ship or a barge. Brackets are often used in the maritime industry to secure cargo containers, heavy machinery, or other equipment that is transported by sea. 

Brackets can be used to provide additional support and stability to cargo during transit, which helps to prevent damage or loss. They can also be used to secure cargo to the vessel to prevent it from shifting or falling overboard.