This 2-ear clamp has an extended clamping range. Its compact one-piece design provides a robust, secure connection. It allows for fast and simple installation and the visible deformation provides evidence of proper closure. The deburred edges reduced risk of damage to parts being clamped. Clamps are made of zinc-plated steel (material no. 1.0338/SAE 1008/1010). The ears of these clamps do not have a dimple and nearly double the clamping range, compared to the 1-ear clamp. 2 ears provide a degree of elasticity to accommodate changes in size of the parts being joined, such as that which may be caused by thermal expansion or vibration. Installation techniques are similar to those for 1-Ear Clamps, but the force applied when closing the second ear may react against the opposing closed ear and make a second crimping operation necessary. For perfect sealing, the ears must be adequately closed during installation. The ears of these clamps should be closed with the recommended, uniform force (known as force priority). This method will result in a constant, reproducible stress within the clamp material, without overloading either the clamp or the parts being assembled. The nominal diameter of the clamp should always be chosen so that, when installed with the correct clamping force, the ears are almost closed.