A U-bolt is a type of threaded fastener that is shaped like the letter "U." It is commonly used to secure pipes, tubes, cables or other components to a structure or to each other. The U-bolt has a U-shaped bend with threaded arms on each end, allowing it to be fastened around an object and secured in place using nuts.

U-bolts are widely used in construction, automotive, marine and industrial applications. They are commonly used to secure pipes and cables to walls, ceilings or other structures, and they can also be used in vehicle suspension systems and as anchor points for various equipment.