How do I loosen this set screw?


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Old 04-16-16, 04:39 PM
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How do I loosen this set screw?

This is not interior but I couldn't find a forum that applied.

The picture below shows a set screw in an outdoor light fixture mounted on the brick wall in front of our house. I don't have a screwdriver small enough to fit in the slot. My smallest screwdriver has a 1/8th inch blade and the slot is about 3/32nds. The original globe broke. I have a replacement globe but need to unscrew the setscrew enough to slip the new globe in place and then retighten it.

How do I loosen and retighten this screw?

Name:  Front-light-P1010064.jpg
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Old 04-16-16, 05:05 PM
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You need a large handled screwdriver because the screw is most likely rusted in place. . Take a cheap or old screwdriver and grind the tip to fit in the slot. If that doesn't work, try gripping the head with vise grips. If that doesn't work, make two parallel cuts on the head using a hack saw or dremel tool. Use an adjustable wrench to turn the screw out. Good luck.
 
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Old 04-16-16, 05:06 PM
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It looks like what's called a square drive.
 
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Old 04-16-16, 05:26 PM
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Now we can all see what screw you're talking about. Do as Beelzebob says. Use some PB blaster if need be.

 
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Old 04-16-16, 05:37 PM
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That pic is much clearer, not a square drive.
 
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Old 04-16-16, 05:47 PM
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I'd just use a Dremmel to turn the partial slot into a full slot and use a flat tip screw driver.
 
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Old 04-16-16, 07:02 PM
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Thanks beelzebob

Those all sound like good ideas. The dremel tool appeals to me most.

And thanks to all who replied.
 
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Old 04-16-16, 07:53 PM
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Hi jim,
The threads on regular screws are never a tight fit, there is a touch of play. If you fit a screwdriver into that slot, preferably one with a square shaft, and apply pressure in the direction you want and then with your third hand tap on the end of the screwdriver. That will help release the tension on the threads.

A hammer drill with a screwdriver blade might also work.

Bud
 
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Old 04-16-16, 10:28 PM
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You can also grab the screw... across the slot.... with dykes. Once you get the screw out.... replace it with something easier to remove. A little Never Seize on the threads helps too.
 
 

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