Carriage Bolts from Bolt ProductsCarriage bolts are mostly used in wood, and are also known as plow bolts. They have a domed top and a square under the head. The carriage bolt square pulls into the wood as the nut is tightened for a very secure fit.
Available in a variety of diameters, carriage bolts are a common choice for any job. Carriage bolts are made from a variety of materials and different grades of steel to accommodate the abundance of applications in which they are used. Below are a few of the most common types of carriage bolts.