I was wondering if someone could explain to me double nutting your bolts on to your head studs. I got a stud that for the life of me while not come out, and the alan socket part is doing me any good, so i figured maybe double nutting them out will work.
Thanks

 

put one nut on the stud upside down, then put another nut on the stud righside up and use two wrenches to tighten the two nuts against eachother. Then use a wrench on the top nut to back the stud out.