Price: 5-100 INR
Coach screws are heavy duty screws designed for metal to timber connections, or to join heavy timbers. Also known as lag bolts or lag screws, they have a square or hexagonal head engineered to be used with a wrench, spanner, or pliers. These screws come in a wide range of sizes, from the very small ones packed with furniture designed to be assembled by the consumer to extremely big ones used in large scale construction projects.
Coach screws consist of an externally threaded cylindrical shaft that tapers to a point, with a head at the other end. When they are driven into timber, the threads bite into the wood, while the head stops the screw from going all the way through as it provides compression.