Chuck key sizes poll

[CWret]

I’ve called it a few things when it unexpectedly popped out with a ‘boing’. Those i won’t repeat.
Otherwise i called it the ‘brass plunger’ - but that sounds like it belongs in the corner of the bathroom.
It’s function is to ‘keep’ things in place and aligned.
So ‘alignment keeper’ if you want to try for a bit of elagance.
Simple is good, therefore i also suggest ‘keeper’.

 

[Dan Dubeau]

Detent, Detent pawl, detent ball, detent bullet......

 

[Janger]

Detent seems to usually involve a notch or stops for positioning. https://en.wikipedia.org/wiki/Detent

Maybe that brass part is a shoe. A brass positioning shoe? a brass friction shoe?

 

[Susquatch]

Keeper is exactly what came to my mind too. How about Brass Keeper?

 

[Dabbler]

Plunger?

 

[Janger]

Plunger?

Plunger… hmmm Skibidi?

 

[combustable herbage]

Plunger… hmmm Skibidi?

That is one search I needed to tell my curiosity NO I never even turned on the sound

 

[Dabbler]

I finally got it.... as in toilet plunger.

It has been common to call a spring loaded rod a plunger in triggers and as lock for roataion, etc. Of course, times and names change!

 

[Susquatch]

Yes, but plunger is just it's action. It's function is to "keep" the bar on and aligned.

Maybe "plunge keeper"...... LOL!

Spring loaded plunger.
Spring loaded keeper.
Spring loaded plunging keeper.

I still like just plain old "keeper".

 

[Tom O]

orientation plunger/keeper?

 

[Dabbler]

I think "Spring operated thingie that provides resistance to movement and retains the handle" might work

or "retaining plunger". Or retainer. or anything else. I'm having fun here.

 

[Dabbler]

Projectile?

 

[CWret]

Projectile

Yes - for some of us. Perfect name.