Hey guys, I tried to replace the rear brake setup, all went well until I seized one of the 2 alen screws.

Question is, has anyone tried a "bolt extractor" and has it done the trick?

Iam thinking of using this:

https://img4.fastenal.com/productimages/4200448.jpg

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You mean the screws that hold the discs on?

I think he means the carrier bolts, but I may be wrong.

indeed the carrier screw

Impact driver (unless the head of the bolt is stripped out) as you mentioned "seized"

When mine were seized, I used heat on the bolt and got a good fitting hex key, cut off the L part of it so I was left with a straight key, and hammered it deep into the key hole.

 

When you get a new bolt, you will see that the hex is not as well formed at the top as it is deeper in, so if you hammer in the key, you may be lucky and find a bit of purchase on the bolt.

 

I would also drown the area in plus gas for a couple of hours.

 

Not a nice job though, I feel your pain, good luck and I hope you sort it ok.