Bolt on the frame for bumper support broke

[Cesar_559]

This bolt is on my passenger side is broken the same way as this one. can i weld a nut on top of it to remove it. or would i have to drill through it to remove it. Any input would be appreciated

http://www.nu-garage.com/Meowth/bumper/IMG_7932.JPG
http://www.nu-garage.com/Meowth/bumper/IMG_7933.JPG

[DennisC]

Mine was broken too at some point.. I see that one of the previous owners of my car has welded a wheel stud and used a lug nut to bolt on the bumper support...
Not sure if that was a good idea or not lol

[mikerbike]

Drill it out, stick another bolt through the hole, then weld it on the back.
Like so..
http://i16.photobucket.com/albums/b1/mikerbike/Other/stud.jpg