Looking for people in all fields! What is this? (Possible SW part)

[Probe Droid]

These little stumps hold film in place in old twin lens reflex and other medium-format cameras. You know how those SW prop guys liked camera parts.

 

[Bradberry00]

Pushbutton maybe, the stem could hold a spring??

 

[thd9791]

Wow you guys are awesome. I get the feeling the head was planted in something metal that moved a lot. there are tarnish marks around the middle of the head and the stem. push button or guide it could be....

 

[mencodave]

in my opinion it looks like a die for a hand held pneumatic squeezer, or that thing that holds IKEA furniture together.