Tool For Removing Those One Way Screws ?

Screw removal tools are available. find a screw supply company. they look like a regular screwdriver, the working end has two hardened tips that hold unto the screw to back out.

I've used a hacksaw or a thin grinding wheel to grind a slot in the head of the screw.

Steve1950 wrote:
Screw removal tools are available. find a screw supply company. they look like a regular screwdriver, the working end has two hardened tips that hold unto the screw to back out.

Yeah, I was thinking you could probably use one of those reverse-threaded bits that are for removing stripped screws.

I have had one of the screwdrivers with the two carbide dowels sticking out to grip the slope of the head. We had millions of those screws in traffic signal equipment and they do work well. I have a set of the security screw driver bits and so far they work well too. Got my 100 bit set from Harbor Freight.

You may have a hard time buying a top quality screwdriver without showing the wholesaler that you have a legitimate reason for one. They are one of the ultimate security screws.

I use them for mounting my license plates. They do not corrode very much.

If it isn't too tight you could try putting a rubber band on the head between the screw and the driver then trying it. Probably as effective as the special tools.

Dave

There is a tool, I have one. It has a couple of very sharp hardened teeth. You have to apply a lot of pressure when backing out the screw to prevent slippage. If you work on commercial bathroom partitions it is a must have item.

Did you also know there is a tool for spinning nails into hard woods? It is one of my favorite tools. It eliminates the two step process of drilling a hole and then hammering the nail.

Hmmm.....I always used an ez-out.

You will mar up the surface abit , but have had very good success using vise-grips on several of those one way screws-bolts...
Both straight on and gripping them from the side ,,, hence the marring marks on the surface they were screwed into...

Needs to be a decent pair too , not the cheaper ones with no bite at the tip !

I've pulled some out using needle nose pliers.

Of course, when I'm putting in screws that I never want to see removed, I'll use the type (like the ones from Fastenright) called shear screws where it has a portion break off once in place, so there is no way anything outside of a Dremel can get any turning leverage. I also couple that with a good amount of Loctite Red which pretty much ensures that screw is staying in place for good.