Description: A bolt is a threaded fastener used to join or secure materials together by being inserted through a hole and tightened with a nut.

Description: A bracket is a supportive or attaching component typically made of metal, used to secure or hold another object in place.

Description: A washer is a thin, flat, circular piece of metal, plastic, or rubber with a hole in the center. It is used to distribute the load of a threaded fastener, such as a bolt or a nut, over a larger surface area, thereby preventing damage to the material being fastened and providing secure attachment.