abby wrote:
Hi,

While looking for square recess screws I found a plethora of
head styles. Has anyone done a comparison of the relative
merits of these styles?

I don't know of any comprehensive discussions by any outfit that
doesn't make or sell screws.

To my way of thinking, square drive is most convenient in difficult
locations because the driver can easily carry the screw, Torx (the
"star") drives most reliably, Phillips is ubiquitous, the rest kind of
suck in one way or another.

--
--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)