On 26 Jul 2010 10:39:52 -0700, ds...@hotmail.com (Dave Salt) wrote:
>Most countries use hex wrenches and Torx screws (etc) for niche applications.
>Robertson screws (square head) don't fill a "niche", they're designed for
>general
>purpose, every day use. In contrast, Phillips screws ('X' head) are designed
>to fill
>a niche; i.e. one where the screwdriver can easily slip off the screw (for
>rare
>situations where this is actually a good thing). What's astonishing is that
>Phillips
>screws are used as general purpose screws throughout the U.S. when Robertson
>screws are so much easier to use.
So what's the advantage in having both Allen and Robertson screws?
They seem to do the same thing.
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