Pls help, rounded bolt - see pic

Soldato
Joined
6 Feb 2004
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Wiltshire


Photo is of my bike frame. 1 of the 2 black bolts have rounded so I can not remove the black shock mount. I will need to remove soon as will get this sprayed professionaly.

Any ideas?
 
Associate
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4 Jun 2007
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Erm, at a computer.
Picture is small but it looks like a torx screw to me. Is it perfectly round or does it have small ridges? If its got the ridges it is a torx bolt and you just need to use a screwdriver with the correct size torx bit.
 
Soldato
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28 Nov 2002
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Cumbria
Picture is small but it looks like a torx screw to me. Is it perfectly round or does it have small ridges? If its got the ridges it is a torx bolt and you just need to use a screwdriver with the correct size torx bit.

isn't the point that they've been rounded hence a torx driver/insert will not work

like already said ,hacksaw a small groove into the top and use a screwdriver or you could file a flat on the sides and try an adjustable spanner
 
Associate
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18 Nov 2007
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Ahhh my day job :D As mentioned I would carefully use a Dremel to make a slot, if that fails drill it out, shouldn't take too long.
 
Soldato
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19 May 2005
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Lancashire
I find a Dremel fitted with a cutting disc does a better job than a hacksaw for cutting a slot in rounded bolts.

This, with a hacksaw you chance hitting the bike frame. A dremel would do it fine, unless its a hardened bolt, but with it being rounded off i doubt it is.

There was a thread no long ago with this exact same question.
 
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