"New Wave Dave" wrote in message
...


I have seen them. I believe that they are regular square drive rejects.
They were double stamped and the screw turned slightly on the second
stamp.

They are actually Canadian made by a GRK with a "torx" drive head
(http://www.grkfasteners.com/). We've been using them for years since
discovering them at the Homebuilders show back in the late 90s. In
Houston, Circle Jerk errr, Circle Saw is the only retail source we've been
able to find for them though, ironically enough, I've had no problem
getting them at small town "Do-It-Best" Lumber and Hardware centers.

Nope that is a torx screw the double suare dirive is a Lox drive, Look
here, www.lox.com

The torx has been around GM since the mid 70's.