Orchid Centre pin not screwing

[ih8analogs]

Today my Orchid v6's "adjustable" centre pin fell out and is not screwing back in. Quite problematic seeing as there's a good chance i'll lose it at some point when unscrewing the orchid from my mod.

Could someone please offer me a solution?
Thank you in advance!

 

[Bunnykiller]

need to figure out why it isnt going back in... threads screwed up, parts missing, could be a couple of different things....
solution... aquire a back up..