Snapped Water Bottle Cage Bolt

serviceguy

Well-Known Member
What are the circumstances? Did you do it removing it, or installing it? Is there any stub sticking up that you can grab with a small pair of needle nose vise-grips?

If you are cutting a slot, a diamond scribe (for engraving) works a bit better on something that small/close quarters. A flex extension is also nice, since there usually isn't room in a compact frame for a rotary tool.
Rivnuts complicate using an ezout. RH bits tend to screw the stub IN to the frame.

If, on the other hand, you happen to have a drill that fits into the frame, a left hand bit works well (assuming it's a mild-steel screw). Use an automatic center punch, then drill the stub with a 1/8 left hand bit. They usually zip right out.
This is the correct advise.

If it's just overtightened and not seized, a left-hand drill bit will probably catch it and unscrew it.
I think the current lingo for that is 'this is the way'. Just keepin' it real...You're welcome!
 

Patrick

Overthinking the draft from the basement already
Staff member
This is the way. But not without building a jig to do so, is that correct @Patrick ?
Jig is the way

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serviceguy

Well-Known Member
Angle iron with two 1/4" holes in it. Get a 1/4" bolt, and cut the threaded portion off. Insert in first hole to hold in place while drilling second.

Unsurprisingly, this is a tool that existed for some years. No call for it anymore.
Fake news, bottle cage thread is 5mm, how would you insert the shoulder of a 1/4" bolt in a M5 threaded hole?
 
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