How to remove old tight deck screws?

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Old 10-13-05, 05:19 PM
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How to remove old tight deck screws?

I'm dismantling a deck and don't want to ruin the redwood decking, still in good shape. Some of the screws are coming out, and a lot aren't. They are tight enought so that the screwdriver bit slips in the phillips screw slot. If I can get a horizontal visegrip on the head I can often get the screw out, but many won't even come out enough for that.

Are there any tricks for accomplishing this. I hate to get out the crowbar...!

John
 
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Old 10-13-05, 07:29 PM
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In my tool box I have a type of screw driver [wish I knew the name of it] that is designed to be hit with a hammer and turns the bit as you hit it. I have had moderate success using it on stubborn screws. Now if we only knew what it is called....
 
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Old 10-13-05, 07:53 PM
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It's called an impact screwdriver...I'll see if I still have one and if so give it a try. But it the phillips slots aren't holding I'm not sure any kind of screwdriver will work, if the slots would hold I could get the screws out.

John
 
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Old 10-13-05, 07:58 PM
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EZ out bolt exractor and a reverse thread bit
Reverse drill bit makes a hole, then a reverse thread extractor is tapped in, usually held by a tap and the whole thing is twisted out
I use a kit, but you can get just one size of bit and EZ out at the hardware store
 
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Old 10-13-05, 08:03 PM
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mmmm...sorry, did a search for bolt extaractor, you want a screw extractor
http://www.doityourself.com/store/sc...ractorsets.htm
 
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Old 10-13-05, 08:05 PM
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This one's sort of like my kit
http://www.doityourself.com/store/6717235.htm
 
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Old 10-14-05, 07:05 AM
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One of the reasons impact screwdrivers work is you are forcing the bit into the head helping it to grip better. It is a little simpler than drilling and using an extractor but you will likely have to drill the real stubborn ones.
 
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Old 10-14-05, 08:37 AM
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Sawzall?

Can you get beneath the deck and use a bi-metal blade and cut between the bottom of the deck board and the joist?
 
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Old 10-15-05, 02:19 AM
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The decking is on real tight and since it is next to an abandoned house(soon to be bulldozed) there is no electricity available even if I could get a bimetal blade to fit. I'm going to look at impact screwdrivers and see how well they work.

John
 
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Old 11-20-05, 08:26 AM
COREY HALLBERG
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Battery Operated

There A Reletively Cheap Battery Operated Sawsalls Although I Wouldnt Recomend Them For Commecial Use But For A Small Project Theyre Ok But Id Try The Impact Driver First.
 
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Old 01-13-06, 10:29 AM
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an old aircraft mechanic's trick: get some Clover valve grinding compound. Dip the tip of your screwdriver in it before trying. the phillips will grip much better.
 
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