Lag screws are one of the toughest fasteners available in the market. Due to these screws’ sturdiness, they are used to connect heavy lumber or other materials that are bearing extremely heavy load. In order to use a lag screw, drilling a hole is the first step. A nut on one side of the lag screw would help it hold things together. The thickness and length of a lag screw is the most important when considering getting these screws. It is sturdy in nature but make sure that the thickness and length you choose can support a heavy weight without breaking or twisting. Lag screws are different from other common screws like wood screws. Wood screws, although used to connect two woods with each other, they are not threaded all the way up, unlike lag screws. Also, when using lag screws, a pre-drilled hole is required. Lag screws are also known to be more safe and secure in providing support compared to wood screws.