View Tameson's range of hose barbs. Hose barbs, also called hose tail barbs, are used to connect flexible hoses to components. They have either male or female threads on one end and a hose tail barb on the other for the flexible hose. These are considered hose and pipe connectors. It is important to know your media to properly select the right material. Common materials are brass, stainless steel, PP, nickel-plated brass, and nylon.