What is a carriage bolt used for?

Carriage bolts are mainly used to connect and fix structural members made of wood, metal or other materials. The characteristic of this bolt is that its head design is usually round with a flat or slightly raised part, which allows the bolt to fit tightly against the surface of the material after tightening to prevent loosening.

Specifically, the carriage bolt is usually inserted into a pre-drilled hole, and then the tightening force is applied by rotating the nut. Its special head design allows the flat surface under the head to fit closely with the surface of the material without the need for additional washers, thus providing a more stable connection. This connection method is particularly common in wood frame construction, furniture making, and metal structures that require stable connections.

In addition, carriage bolts are also favored because of their easy installation and removal characteristics. In occasions where frequent disassembly or reassembly is required, using carriage bolts can greatly save time and labor costs.