The thread has been successfully Stuck.
That's what it says when a thread is "stickified" - I kid you not!

Hmmm... Now you got me wondering if I have any 6.5x9cm glass plates.

NO! I'll use roll film. Drop that plate thought, and forget about the sheet film too. I'll be a good boy and use real roll film in a camera made for roll film.

I think.

So far, at least.