Rounded Bolts.

[Laurence--Trials]

I'm looking for a way to get 2 2mm rounded bolts out of my Hope rear brake.

I'm currently trying to superglue an allen key into them (waiting for the glue to dry ATM)

What are other ways to get rounded bolts out?

[BlueSmokeyJoe]

I'm looking for a way to get 2 2mm rounded bolts out of my Hope rear brake.

I'm currently trying to superglue an allen key into them (waiting for the glue to dry ATM)

What are other ways to get rounded bolts out?

Which screws are they? The ones on the master cap?

Edit: If it is, if the protrude a bit, try cutting a slot into the top and use a flat head screwdriver the unscrew them

Edited September 9, 2010 by BlueSmokeyJoe

[ellis-collins]

The two ideas that have been suggested are great, they usually work for me ! However another way I get rounded bolts out, is to make sure that the bolt is basically a circle, then get a torx key (which is a little bit to big to fit in the bolt) hit it in with a hammer, then undo it . I hope this works, I know how annoying rounded bolts are ! :/

[Laurence--Trials]

Which screws are they? The ones on the master cap?

Edit: If it is, if the protrude a bit, try cutting a slot into the top and use a flat head screwdriver the unscrew them

They were the bolts on the Reservoir cap.

Ahh thats a really good idea, however i have them out now..

The two ideas that have been suggested are great, they usually work for me ! However another way I get rounded bolts out, is to make sure that the bolt is basically a circle, then get a torx key (which is a little bit to big to fit in the bolt) hit it in with a hammer, then undo it . I hope this works, I know how annoying rounded bolts are ! :/

I did try this but with a .5 bigger allen key didn't really wanna carry on though as it as the reservoir cap so big hollow under the bolt.

[Ste of Wigan]

if it happens again u can get stud extracters from most good tooling shops. they look like a drill bit but the flute is the opposite rotation and there tapered! got a set here if anyone may need to borrow them

[Filo]

if you use your tools correctly you wont round out the heaps,then never be in this situation.

[Alex Dark]

Very Constructive

Just use some torx bits, or grind a slot with a dremel ... pretty much your best chance of getting them out. What will also help is clamping the master and reservoir cap to take pressure off the bolts.

[craigjames]

A torx bit has always done the job for me. Tap it in gently, but make sure it is all the way in to allow it to get maximum bite on the bolt and slowly undo it.

It may not have been constructive, but the comment is fair, the amount of people that round bolts and strip threads purely because they just hang off the end of their tools and do everything up as tight as they can. Not ideal really.

[super]

Old engineers trick:

Tap head of bolt with a chisel to form a groove ( a bit like flat headed screw) then with a cntre punch/small chisel/screwdriver gently hammer at a 45 degree angle on one side.

This method puts pressure down through the screw thread and also exerts a turning force. It's especially good for small bolts like you've had trouble with.

[Filo]

what i said is true,you need to learn how tight to do things.im a fitter and play with big equipment, like 75mm spanners etc when using htem you gotta do it tight,but a M5 brake mount only need to be firm. Ive seen to many people not know how to use tools correctly and it suck when you gotta fix there bike(i feel sorry for all bike mechanics.)

its not hard to use tools correctly at all.