Connecting conduit to junction box

[ivandrago]

I am looking to connect 20mm round conduit to a junction box such as this:

What I wondered is, what connector attaches to the round conduit and screws into the junction box?

 

[SimonR]

A threaded 20mm male adapter, something like this

https://www.tlc-direct.co.uk/Products/MT20MAB.html

 

[ivandrago]

Brill! Thanks Simon.