K&M - 21950-000-25 - Thread Adapter - Reducer M 20 Male To M20 X 1.25 Mm Female.

The reducing thread adapter M 20 male threaded bolt fits with a M20 x 1.25 mm female thread. Microphone rods can be connected to base plates (450 mm) such as e.g. 6-26740-2-56.