How do you do it? I have tried screwing two nuts on and unscrewing the front one and mole grips but neither work
Same trick with the two locked nuts, but undo the back one - if you do the front one it'll just unlock the two
James
just to clarify, 2 nuts locked together, undo the one nearest the head 
Weld the nut to the stud 
thats what i did and they just both undid (eventually)
Try giving the stud a couple of sharp clouts with a hammer but make sure you have the second nut level with the end of the stud to prevent damage. OR buy a decent stud extractor which will lasts years , the type that works like a chuck by Sealey tools is quite good.
The stud extractor i have requires you to drill a hole in the stud and screw it in the wrong direction.
Im not reusing the stud so i might just weld it on
weld will be your best option then....
get out the blow torch!!!!!!!
The type of stud extractor you have is used for removing broken studs , best place for them is in the bin . The type you need is for removing the studs without damage.
Drown in good quality penetrating oil and leave alone....
Then as above, wind some nuts on then give it a good clout squarely with a hammer before trying to undo or weld anything one.
Once you have sheared it off it will be a complete PITA to remove, last resort then being spark errosion...
Take care and time !!!!!
Have you got any way of getting heat into the stud?
quote:
Originally posted by stevebubs
Have you got any way of getting heat into the stud?
I strongly recommend Mark's suggestion above - give it a good soak in a decent penetrating oil (e.g. PlusGas), leave it for an hour or two then
spray it again. Leave it for a long while to ensure deep penetration (oooer!).
Even if you end up welding on a nut, you should hopefully avoid snapping the stud when to eventually try unscrewing it. Down-side is that it will
stink when you weld it!
why take em out, if they wont come out ,because you just know ones gunna snap !!
One already has