I got a set of mirrors off a dtr member and I need to figure out how to pull the studs off the mirror. I dont think they are threaded. I ran the nut down and figured they would be left hand threaded but they wont budge. Surley they arent glued in?

 

I got them out. I used a flat file to make two flat spots on the small shoulder of the stud. Took small pair vise grips and the stud came out. Not left handed.