Method and device for manufacturing pipe connectors

Devices and methods for manufacturing fittings with different ends are disclosed, such fittings permitting different measures of connection. For example, one fitting is a threaded end connector with its one end being potentially configured as a compression fitting and its other end as a thread-bearing end. An intermediate section having preferably a polygonal cross-section is provided between the two ends. Starting with a pipe piece, the manufacture takes place in a few process-safe method steps.