What is a common use for a lag bolt?

A lag bolt, also known as a lag screw, is specifically designed for heavy-duty fastening tasks. Its structure features a thick, coarse thread that allows it to penetrate dense materials, making it ideal for securing heavy timber or structural components. This inherent strength provides the necessary holding power to withstand substantial loads, which is crucial in construction and structural applications.

Using lag bolts is particularly common in projects involving wood framing, where their ability to grip and hold large pieces of wood tightly together is essential for stability and safety. In contrast, lighter screws or fasteners are not suitable for these applications due to their inability to support significant weight or provide the durability needed over time.