What Are Lag Bolts?

Lag bolts, also known as lag screws, are heavy-duty fasteners designed to connect materials to wood or to join heavy timbers together. Unlike conventional screws, which are threaded all the way to the head, lag bolts have a smooth shank near the head, followed by sharp, coarse threads designed to bite into wood. The head of a lag bolt is typically hexagonal, allowing it to be driven with a wrench or a socket, which provides the leverage needed to secure it into place.

Lag bolts are commonly used in construction and woodworking for tasks that require a high level of strength and stability, such as building decks, framing houses, attaching beams or posts, and securing heavy machinery or components to wood bases. The strength and durability of the connection formed by a lag bolt come from the deep penetration of its threads into the wood, creating a tight and secure fit.

When using lag bolts, it’s generally advisable to pre-drill a pilot hole slightly smaller than the diameter of the bolt. This helps to ensure the wood does not split when the bolt is inserted and makes it easier to drive the bolt into place. The size and length of the lag bolt to be used depending on the specific requirements of the project, including the types of materials being joined and the load they are expected to bear.

Xinchi is a trustworthy fastener company, especially in furniture nuts. We have a factory,  founded in 2007(Factory Video). And we are the designated fastener supplier to“STAPLE”. As a trusted fastener supplier,  Xinchi can offer a wide range of high-quality fasteners, including T nuts, screws, bolts, rivets, washers, etc. If you want to know more about fasteners or want to wholesale fasteners, please feel free to contact us. And then our experienced and expert service team will reply to you as soon as possible.