Torx are far less common than hex in the market currently. Choose that
for your project and take advantage of the better drive
characteristics of the Torx heads. Torx drive surpasses even square
drive construction screws on commercial jobs. Try them yourself with
an impact driver and be convinced.
I don't know if they are in the market yet, but if you can find screws
that take a Torx socket (female) there just isn't anybody carrying
anything like that around in their pocket. Bolts in that pattern are
showing up in automotive. Good luck.
What is your application? What are you trying to do?
The "drilled torx" or drilled hex screws will make it
obvious that you don't want others to dissemble your device.
How effective is this? No way to know, from here.
Just about any sheet metal screw can become "tamper proof" if you fill the
screwdriver insertion area with a dollop of epoxy.
Then, to remove the screw, you drill a small hole, insert a screw-extractor,
and wind it out. You could probably even re-use the screw with another
portion of epoxy.
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