Set Square wrote:

Some hoze taps are supplied with a brass screw-on fitting which has a
fluted outlet tube onto which you can push a hosepipe, and secure it
with a jubilee clip. If yours doesn't have one, you should be able to
buy one loose.

Technically known as a 'cap & liner'. Typically a 3/4" BSP x 1/2" tail cap
& liner.

Dave