Getting seized set screw out

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01-19-22, 08:19 AM

beedoola

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Getting seized set screw out

This is for a restroom exhaust fan. The motor died and I have to get the blade off the shaft shown in the picture.

I’ve dowsed the screw with PB blaster a few times and let it sit overnight but it doesn’t seem to be budging.

might this be reverse thread?

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01-27-22, 10:25 AM

beedoola

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I finally got it. Pushed the Allen key almost to its limit but it popped loose!

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01-19-22, 08:26 AM

Pilot Dane

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It should have a standard direction thread. Only use a high quality, sharp wrench and make sure it is seated as far in as it will go... and hope it breaks free. You can also try heating it with a torch.

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01-19-22, 10:17 AM

Marq1

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I just had a situation trying to get a set screw out of a single handle faucet.

Took about 5 days of a small shot of PB every day, 5th day it came right out, give it some time.

Good advice on the tool, a good, not cheap hex will seat better and prevent striping.

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01-20-22, 06:38 AM

ruauu2

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It's very unlikely a reverse thread.

My father taught me an old trick - if you can't loosen a screw, tighten it. Then attempt to loosen it. That's worked for me many times over the years.

Also what Marq1 said - give it more time with the PB Blaster.

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