Plumbing – How to get a broken bolt out of the bathtub overflow drain

bathtubplumbingrepair

I am in quite a pickle with my bathtub overflow drain. What I thought would be an easy leak fix quickly turned into a nightmare when one of the bolts for the drain cover snapped off.

So far I've tried drill bits (regular and left-handed) but I cannot bite into the bolt to get a hole for an extractor. My next thought is trying to remove the pipe from below, but I'm not sure how hard that would be, or if I could just end up causing more damage. Any suggestions?

Here's the drain with the broken bolt:
Broken tub overflow drain bolt

And here's what's accessible from below:
enter image description here

Best Answer

Squirt some WD-40 on the screw, wait awhile and then grab the screw with a pair of vise grips and twist counterclockwise.