What's this called (knob attachment)

[(*steve*)]

I have some smashed knobs with the following type of attachment.



What's that method of attachment called? I want to try to search for some similar knobs...

 

[dorke]

"Locking knob",with/without a tightening screw on the side

 

[kellys_eye]

That's an insert for a 'collet knob' (with securing nut, of course).

Typically found on high-end test equipment.

I have a small selection recovered from dismantled equipment - decent knobs are hard to find these days - giggidy.

 

[(*steve*)]

collet! (facepalm) Of course! Thanks

 

[kellys_eye]

collet! (facepalm) Of course! Thanks

Been there - facepalmed loads of occasion!

Some of the simplest thought processes seem to get stuck for no apparent reason

My excuse (and very reasonably) is age...... what's yours

 

[(*steve*)]

My excuse (and very reasonably) is age...... what's yours

Sorry, what was the question? :-D

 

[kellys_eye]

Thursday?

 

[duke37]

Let's have a cup of tea

 

[(*steve*)]

That would be lovely.

Who are you people? Do I know you?