Never seen a deadbolt screw with this pattern (pic)...


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Old 07-09-20, 10:09 AM
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Never seen a deadbolt screw with this pattern (pic)...

What do I use to remove them? Nothing I have is turning them.
 
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Old 07-09-20, 10:17 AM
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Those are tamper resistant screws. A flat blade screwdriver can grip to tighten but slips off in the other direction so you cannot remove the fastener. If I have to remove them I drill out the screw. You can also grind the head off with a Dremel tool. And if you're feeling lucky you can use a center punch or tiny chisel and work on the perimeter to unscrew it.
 
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Old 07-09-20, 10:50 AM
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Old 07-09-20, 10:58 AM
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What a BS pain in the butt.
 
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Old 07-09-20, 02:02 PM
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I wound up pummeling/caving in the face plate around the screws with a metal chisel. This gave me enough depth to grab them with the needle-nose.
 
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Old 07-11-20, 03:43 PM
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I use a modified flat blade screwdriver for this purpose; with the tip filed to resemble a "V" shape, and with the edges filed sharp, in the way of opposing "chisel" points.

You can also use a spanner, or "snake eyes" screwdriver, with the spanner points ground similarly.

If you have the funds, you can purchase a screwdriver for the purpose......it has 2 hardened "back angle" chisel points.....I think it was called "The Unscrew It"

Having said all the above, and never seeming to have one of the above at hand when I need it, a standard "new" (sharp) flat blade usually works, if you press hard while turning only a few degrees until you encounter the "ramp" , then repeating several times, and in this way, you dig a ledge into what is usually the soft aluminum or brass screw head, finally allowing you to get a purchase on it.
 
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Old 07-12-20, 04:42 AM
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Last resort - 'tin' the tip of the screwdriver with a tiny amount of solder, heat the screws with a propane torch.
Doesn't have to be a good solder joint, just enough to keep the blade from skidding out.
 
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Old 07-12-20, 09:22 AM
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Awesome suggestions guys! I won't be so destructive next time.
 
 

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