What is the difference between bolts and screws? The distinction between the two is often misunderstood. A simple way to differentiate bolts and screws based on their intended purpose: Bolts are used for assembling two unthreaded components with the aid of a nut. Screws, on the other hand, are used with components that are already threaded. A screw may also be used to cut an internal thread into the component. Threaded fasteners can be described as either screws or bolts depending on how they are used. Bolts are often used to make a bolted joint, which is a combination of the nut and the shank of the bolt acting as a dowel. Many bolts have a plain unthreaded shank as this makes for a stronger dowel. At BSC, we have one of Australia’s largest range of bolts and nuts from world-leading suppliers such as EziTite, Hobson, Macsim, Donaldson and Brighton-Best. Whether you are looking for low tensile bolts and nuts, or bolts and nuts for anchors and rivets, we have it in stock. Visit one of our branches today and our friendly staff will be ready to help you.