31x10x0.8mm A hose clamp is used to attach and seal a hose onto a fitting. There are many different designs and applications. Common types include Screw/band clamps (also known as worm gear clamps), spring clamps, wire clamps, and ear clamps. The goal of a hose clamp is to provide a tight seal using even pressure to keep the working fluid from escaping. It is important to inspect the sealing surfaces, ie the hose and the barb or fitting, for imperfections, to insure a proper seal. It is also important to use the proper clamp type for the indented application to insure fitment and prevent damage. euromotiv offers a wide range of O.E. Quality replacement hose clamps for your European vehicle.