Help ASAP!

[doggywoofster]

I have an HP Active pen. The top little piece was loose so I deceived to unscrew it all the way to see what was there. Now I can’t put the two pieces back together. I’ll attach some images please help ASAP. 
 

 

[doggywoofster]

Here are the pieces from a different angle. 
 

 

[HanZie82]

Aim the little nubby in the point before you screw it on.

 

And can i just say you post title needs a lot of work. 50% wont even open such titles.
Next time try and describe the actual problem, then you will get way more help.

 

And ASAP matters NOTHING to anyone but you.
I can fix it for you but you cant afford that!

We are all volunteers here, just regular people with knowledge that like to post/help.