I was bleeding my rear brakes, and had a hard time getting the brake line back in. I think I did nearly everything I should not have. Now I need to replace the back left brake line but I cannot remove the bolts as they are completely stripped. One is entirely stripped (circular now, and slightly bent) I took an electric saw to the metal hose, but I cannot get the stripped bolts out (so far I have tried lubricant and tapping). I have posted pictures. What should I do? Is this a lost cause and I need to take it in?

 

 

At this point you may just want to break out the vise grips, clamp down on the rounded nuts and crank them until they come off. You might also want to consider investing in a set of flare nut wrenches so this doesn't happen again.

 

and always hand thread them on a few turns before trying to use the flare wrench on them

and they don't need to be very tight, normal specs are only like 16lb's