Disc Bolt rounded

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Disc Bolt rounded
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flag Jackety123
Posted: Dec 28, 2011 at 16:28 Quote
How can i undo my disc bolts, 3 are rounded.
Thanks
flag ramstein-dh
Posted: Dec 28, 2011 at 16:35 Quote
Jackety123 wrote:
How can i undo my disc bolts, 3 are rounded.
Thanks

Get a grinder and a large flat blade screwdriver.
The what you need to do is grind a line across the head of the bolt CAREFULLY!
and unscrew with the screwdriver.

Hope this helps
flag Jackety123
Posted: Dec 28, 2011 at 16:37 Quote
ramstein-dh wrote:
Jackety123 wrote:
How can i undo my disc bolts, 3 are rounded.
Thanks

Get a grinder and a large flat blade screwdriver.
The what you need to do is grind a line across the head of the bolt CAREFULLY!
and unscrew with the screwdriver.

Hope this helps
Thanks But how am i meant to undo something that tight with a screw driver where you cant get any grip
flag justa10custom
Posted: Dec 28, 2011 at 16:40 Quote
it should work if you can push on the screwdriver hard enough
flag ramstein-dh
Posted: Dec 28, 2011 at 16:43 Quote
you could always us one of those impact screwdrivers , that when hit with a hammer turn the bolt.

Or an engineer could drill a hole through the middle and take them out..
But would cost you money.

Are they star bolts or allen bolts?
flag justa10custom
Posted: Dec 28, 2011 at 16:51 Quote
the actual name is torx bolts. and the impact screwdriver might work worth a try
flag Jackety123
Posted: Dec 28, 2011 at 16:56 Quote
What? The bolts are Allen bolts
flag justa10custom
Posted: Dec 28, 2011 at 17:06 Quote
they should be torx bolts like this
Unsecure image, only https images allowed: http://www.tirifan.chinafastener.com/ImgProducts/2011/3/20110322113049_X.jpg
flag Jackety123
Posted: Dec 28, 2011 at 17:09 Quote
Yes I know what they are! But the front ones are Allen cos its a cheap disc
justa10custom wrote:
they should be torx bolts like this
Unsecure image, only https images allowed: http://www.tirifan.chinafastener.com/ImgProducts/2011/3/20110322113049_X.jpg
flag justa10custom
Posted: Dec 28, 2011 at 17:14 Quote
oh well you can do one of three things pitch the front brakes, get a set of torx rotor bolts, or got to the local hardware store and get a set of bolts that are the same thread pitch, diameter, and length as the ones you already pulled out of the hub
flag Jackety123
Posted: Dec 28, 2011 at 17:19 Quote
Do you not understand this thread? I can't get the bolts out because they're rounded!
justa10custom wrote:
oh well you can do one of three things pitch the front brakes, get a set of torx rotor bolts, or got to the local hardware store and get a set of bolts that are the same thread pitch, diameter, and length as the ones you already pulled out of the hub
flag justa10custom
Posted: Dec 28, 2011 at 17:21 Quote
take a grinder and make a slot to fit a flat blade screwdriver and hope for the best
flag deeeight
O+
Posted: Dec 28, 2011 at 20:54 Quote
Every bike enthusiast should own a screw extractor set for a powerdrill. Doesn't matter if the hole for the allen/torx head wrench is rounded or not. They bite into the metal head of the bolt itself and will remove them.

And as to allen or torx, rotor bolts are the same bolt size ( M5 x 0.8 ) as water bottle cage bolts and fork/rack eyelet mounting bolts. Its possible to mount any of them with practically any size/type bolt head. You can use simple hex (socket wrench) head bolts, allen head bolts, torx head bolts, or even if you go to the right store for them, slotted, phillips or robertson head bolts. Personally I like using the robertsons as they're very hard to strip, can be installed at very odd angles, and are guaranteed to screw over your average bike thief.
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