"Ed Pawlowski" wrote in message
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"Robert H" wrote in message
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I am about to install a security screen door which will be attached to
the house with 8 included 4-inch color-matched one-way screws.
Obviously, I need to get it right the first time. According to the
oh-so-simple instructions, I just need to drill 3/16-inch holes, then use
a flat blade screwdriver to insert the screws.

How do the pros do this? Is there a drill bit for one-way screws? I
also had the idea to first install the door using 2-inch hex-head lag
screws, then remove them one by one and replace with the one-way screws.

Any suggestions would be very much appreciated.

You are correct using the regular screws and replacing them one at a time.
There are different head types for security screws. Since you need a flat
blade to install them, I'm guessing they are the one way type with two
bumps on them. Please verify that so I can order the correct screwdriver
to take them out and steal the door. See item 7392A64 at the McMaster web
site. There is a drill bit attachment also to get them out even faster.
Item 5713A14

I hope you still feel secure!

I used to be in that business. Using one-way screws is not a great idea.
If you put them in a tube, you have a bugger of a time getting them out.
Putting them in a tube is a good way to keep someone from accessing them and
backing them out. But some doors come with just screw tabs. It just
depends if you have a welder, and can weld. It only takes a 110 Mig to do
it. What works better, and is available, is to weld on a 1" x 1" cover on
the tube, and limit access to only those determined thieves who want to use
a grinder to get it off. Anyone who is really in a hurry will just hook a
chain on it and pull it off in two seconds like the police do.

Unless you get into some serious (spelled with two $$'es) security barriers,
most security devices attached to frame, block and brick homes are pretty
wimpy.

I believe I could get into one in ten seconds max. An experienced picklock
could have it open in just a little longer, and walk in.

Steve