Ahhh Help, I Rounded A Bolt!

[Brettoll]

I've made a boo boo. Lol. I rounded off one of the bolts on my disc whilst trying to remove it. Help me, I need to get it out asap and cheaply. Any ideas??

[TomR]

Is the head domed? could try drilling a smaller diameter hole down the centre and using some screw extractors, or if its not too tight try wedging a screwdriver in there if its not too chewed up. If its not domes try getting some mole-grips round it.

[quick_spider]

I've had success using an allen key and a pair of vice-grips together to shift a rotor bold before

I've heard of people glueing an old allen key in, but never tried it myself.

Otherwise try what planetxpimp said.

Jon

[Synergy]

get a grip people this is the way :

take the wheel off, cut a line (with hacksaw) down the center of the bolt (not too far or it ill cut into ur disc. then just un screw it with a screwdriver

Edited September 26, 2006 by Synergy

[HargrovesToby]

rite mate

either force another socket or screndriver into the head with a hammer and tap or you could try giving it a grip with monkey locking pliers, loads of leverage and if they are on tight it wont slip atall, thats what i do with my bolts when i round them!!

toby

[IOLO]

naa peepl, screwdriver isnt always very good, and cant give enough torque sometimes..

THIS is THE way !

wheel off, carefully but very tightly put bolt in the vice, ( domed head bolts may need to edges filing a bit for better fit.

then turn your wheel as a good big lever !

the CORRECT direction ! lol

hope that helps.

iolo.

[Krisboats]

If its a dome-topped bolt then get an angle grinder or good dremmel bit and file/grind the top of the bolt off, undo all the other bolts and take the disc off, grab the remaining stump of bolt with some mole grips and undo it that way.

If its a nice hope style bolt with big tall sides then get a grinder/dremmel again and file two flat sides onto the bolt on opposite sides of the bolt, then, clamp with mole grips and your bolt will come out.

Very easy, should take about 3-10 minutes depending on how competant you are and has worked every time for me and friends.

EDIT: The two flat sides idea is essentially the same as Iolo's only without using a vice

Edited September 26, 2006 by Krisboats

[TomR]

get a grip people this is the way :

take the wheel off, cut a line (with hacksaw) down the center of the bolt (not too far or it ill cut into ur disc. then just un screw it with a screwdriver

But if its a stainless steel and domed head its very easy to slip off and graunch whatevers next in line, which may cost a fair few quid.

Also on smaller Dia. bolts, with the thickness of a hacksaw blade you made shear the top and and be fook'd forever.

[mitleifcreisis]

if the thread is damaged you need this

Helicoil

Edited September 26, 2006 by mitleifcreisis

[Jaffacakes]

Angle grinder

[munkee]

Bahh.. as said before.. Super glue the allen key in there.. works every bloody damn time no need to fanny with anything else.

[Orgun_Donor]

Personally id go for the hacksaw method, then use a screw driver, or super glue an old alen key in

[F-Stop Junkie]

You could try a torx bit wedged into the rounded bolt... It's a bodge, might work though.

[Phatmike]

The 1st thing that sprung to my mind, was to simply remove the rest of the bolts, and then just rotate it using the rotor...

[craigjames]

tapping a slightly larger torx bit into the hole with a hammer, and then slowly, with lots of downwards force turn. always works for me!!

[Brettoll]

Thanks guys, tried the superglue methd, ended up spinning the glue. So time to find soem stronger stuff. Any good ones??

[dave33]

depending on the size of the head, file 2 flats on its so you can get a spanner on about 8.9 or 10mm should do

[Greetings]

Undo the remaining bolts. You should be able to pivot the disc on the damaged screw. The screw should turn with the disc, so pivot it anti-clockwise (if the screw turns with the disc, it will unscrew), then back to it's original position but holding the screw so it doesn't screw back in. Repeat a few times. It worked for me when I had a super glued rounded off bolt. Hope you get what I mean though...

Edited September 29, 2006 by Inur

[Krisboats]

Undo the remaining bolts. You should be able to pivot the disc on the damaged screw. The screw should turn with the disc, so pivot it anti-clockwise (if the screw turns with the disc, it will unscrew), then back to it's original position but holding the screw so it doesn't screw back in. Repeat a few times. It worked for me when I had a super glued rounded off bolt. Hope you get what I mean though...

If its anything like the disc hubs i've got that wont work... the axle is in the way . I'm pretty sure most other hubs axles are in the way too.

[munkee]

Thanks guys, tried the superglue methd, ended up spinning the glue. So time to find soem stronger stuff. Any good ones??

As if! more superglue is required.. drown the f**ker in it and make sure its all covered

[Greetings]

If its anything like the disc hubs i've got that wont work... the axle is in the way . I'm pretty sure most other hubs axles are in the way too.

True, there's a limited amount of movement. But it's normally enough to get the screw loose enough to unscrew with other tools.