Square neck carriage bolts, also known as coach bolts, serve a specific function in various applications. These bolts are designed with a square-shaped neck just below the head, which prevents the bolt from rotating when tightened. This unique feature makes them ideal for situations where you want a secure and stable connection.

One common use of square neck carriage bolts is in woodworking projects. They are often used to attach wooden components, such as beams, posts, or rails, to each other. The square neck prevents the bolt from spinning while you tighten the nut, ensuring a tight and secure joint. This is particularly important in structures like decks, fences, or furniture, where stability and strength are crucial.

Another advantage of square neck carriage bolts is that they can be installed from one side only. This makes them convenient for applications where access is limited, as you don't need to hold the bolt head while tightening the nut. Instead, you can simply insert the bolt into the pre-drilled hole and secure it from the other side.

In addition to woodworking, square neck carriage bolts find utility in other areas as well. They are commonly used in construction, automotive, and machinery industries. These bolts can be used for fastening metal components, securing brackets, or even attaching parts of machinery. The square neck ensures that the bolt remains stationary while tightening, preventing any unwanted movement or loosening over time.

The function of square neck carriage bolts is to provide a reliable and secure fastening solution. Their square neck design prevents rotation, making them suitable for applications where stability and strength are essential.