Clamps for corrugated pipe fixation are available in various sizes suitable for different nominal diameters and equipped with a fir tree fastening designed for quick insertion into a drilled hole. Thanks to the many lamellae of the fir tree fastening, such clamps can also be fixed in non-through holes. The pipe is snapped into the clamp, which provides a secure fixation. The profile of the clamp has an internal collar that prevents the pipe from sliding in the clamp. CTC clamps are used, for example, in the automotive and electrical industries, in the production of harnesses, and wherever corrugated pipes need to be quickly and securely fixed.