My mate did it once, he didnt have any sticking out, so he took it to his local bike shop, they drilled the old bolt out, and then took it to a engineering place to get it helicoiled, cos him about 20 quid! Not too bad!! If u ant got money to spend, then you could just drill it out urself, then tap it to the next size up! This isn't ideal, as it means u have to drill your mounts in order to fit the bolt through! Hope i helped! Ps. any local engineering places will heli coil it for about £10 Danny...