Hey there,

I was wondering if you folks know how to replace a lock on a tack room door.  Just the cylinder needs to be replaced, not the whole latch. 

This is what I need.  Do I just screw it in?  or is there a trick to it? 

Thanks! 

Edited because my first picture didn't work....

Just run it by your local locksmth. Have him replace/repair/rekey it.