What Are Lag Bolts?
A lag bolt, or lag screw, is a type of fastener used for making mechanical connections between two pieces of wood to ensure that they are held together securely. Lag bolts are often used to fasten large beams and posts used for decking, wooden bridges, and other wooden structures. They can also be used in concrete, but require a special insert, called a lag. These fasteners are directly screwed into wood. Lag bolts have a large head on one end and a cylindrical shaft with smooth and externally threaded parts along its length. The smooth section of the length is located directly below the head. The threaded portion contains a helical structure that allows the screw to be advanced and tightened when rotated clockwise. The thread tapers to a sharp point at its end to help engage the screw by embedding into the surface of the wood.
Related Questions
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