Author Topic: Removing stripped screws from PCB  (Read 6559 times)

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Offline kekman

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Removing stripped screws from PCB
« on: Tue, 15 March 2016, 03:47:24 »
As subject suggests, I've stripped a screw holding the pcb and backplate together, it's beyond recovery now. I've tried setting glue and a screwdriver to the screw but can't form a strong bond, as well as placing duct tape over the top and trying to unscrew. Any other methods that people recommend?


Offline kohi

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Re: Removing stripped screws from PCB
« Reply #2 on: Tue, 15 March 2016, 03:52:04 »
I never had to deal with a stripped screw before but I heard about the rubber band method before, something like this:
http://www.wikihow.com/Use-a-Rubber-Band-to-Unscrew-Stripped-Screws
don't know if it'll work though; guess you could try

Offline kekman

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Re: Removing stripped screws from PCB
« Reply #3 on: Tue, 15 March 2016, 03:59:15 »
 here's a picture. I'll also probably have to repair the circuit since I accidentally scraped it when to use pliers

Offline Quackles

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Re: Removing stripped screws from PCB
« Reply #4 on: Tue, 15 March 2016, 04:17:52 »
When I stripped a screw on my Realforce I had to get someone (iPhone repair place in Chatswood) to drill it out for me. This is probably your best bet if all other methods don't work. Don't bother with those extractor drill bit kits, as it didn't work at all for me.

Offline kekman

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Re: Removing stripped screws from PCB
« Reply #5 on: Tue, 15 March 2016, 05:09:49 »
When I stripped a screw on my Realforce I had to get someone (iPhone repair place in Chatswood) to drill it out for me. This is probably your best bet if all other methods don't work. Don't bother with those extractor drill bit kits, as it didn't work at all for me.

ah damn, how much did it cost?

Offline TalkingTree

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Re: Removing stripped screws from PCB
« Reply #6 on: Tue, 15 March 2016, 05:15:05 »
Spray the base of the screw with a lube and twist the screw off with pliers. Careful not to damage the PCB.
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Offline Quackles

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Re: Removing stripped screws from PCB
« Reply #7 on: Tue, 15 March 2016, 05:53:17 »
When I stripped a screw on my Realforce I had to get someone (iPhone repair place in Chatswood) to drill it out for me. This is probably your best bet if all other methods don't work. Don't bother with those extractor drill bit kits, as it didn't work at all for me.

ah damn, how much did it cost?

He charged $10, even though it took him 3 seconds. Whatever, he got it out!

Offline appleonama

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Re: Removing stripped screws from PCB
« Reply #8 on: Tue, 15 March 2016, 06:26:21 »
When I stripped a screw on my Realforce I had to get someone (iPhone repair place in Chatswood) to drill it out for me. This is probably your best bet if all other methods don't work. Don't bother with those extractor drill bit kits, as it didn't work at all for me.

ah damn, how much did it cost?

He charged $10, even though it took him 3 seconds. Whatever, he got it out!

I'd go with this. be gentle to that topre pcb  :'(
trace looks fine

Offline hasu

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Re: Removing stripped screws from PCB
« Reply #9 on: Tue, 15 March 2016, 08:07:40 »
here's a picture. I'll also probably have to repair the circuit since I accidentally scraped it when to use pliers

You can use tool like this. Never tried it myself though.
http://www.engineer.jp/en/products/pz59e.html

Invest to good screw drivers before disaster like this, but many including me tend to jump into cheap ones :)

Offline kekman

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Re: Removing stripped screws from PCB
« Reply #10 on: Tue, 15 March 2016, 18:10:41 »
here's a picture. I'll also probably have to repair the circuit since I accidentally scraped it when to use pliers

You can use tool like this. Never tried it myself though.
http://www.engineer.jp/en/products/pz59e.html

Invest to good screw drivers before disaster like this, but many including me tend to jump into cheap ones :)
I tried using pliers before, as well as sidecutters to grip onto the sides, but it didn't turn, and I even scraped the PCB a bit :(

Offline Melchior

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Re: Removing stripped screws from PCB
« Reply #11 on: Thu, 17 March 2016, 15:10:42 »
What is that Torx ? there are specific screw extractors for phillips and most other types of bit.

basically it follows the bit shape with a metal 'tooth' that will bite into the steel of the screw head and allow torque transfer.


Or use my motto:
NEVER USE A WORN SCREW - ALWAYS REPLACE !

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Offline blighty

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Re: Removing stripped screws from PCB
« Reply #12 on: Thu, 17 March 2016, 16:00:24 »
I'd use a dremel with a cut-off wheel attached to cut a groove into it (be careful of the traces, of course).  Then you can remove the screw with a flat-head screwdriver...
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