The clevis fastener is a U-shaped metal fastener used for many purposes. It is steady, fast and long lasting. It is applicable in farm machineries, in workshops and many other applications today. Among the chief benefits that come with this metal fastener is its ease of use. It is very easy to use. You will find that it comes with threaded or unthreaded fastener pins to make it fast. The unthreaded pins are usually held in place by a pin that is split at one end such that they â€œexpandâ€ and therefore they make the connection fast and tight. As simple as this connection seems, it is very steady and can be used to connect chains and heavy machineries without any incidents.