On Thu, 21 Oct 2004 19:22:42 -0400, "Jim Pugh"
wrote:


Now, I am going to add to your list of thought provokers:
Is there a benefit (real or imagined) to using a flat head screw, with the
taper underneath, that will center the screw into the faceplate hole?
Or, are flat shouldered screws better because they add a 'clamping' force to
the faceplate?

If you think about it, Jim, you'll realize that the "clamping" force,
is actually the same force, just less of it, that you'll apply if you
use a tapered screw in a tapered hole. If you use a round-headed
screw in a tapered hole, you are actually concentrating the same
amount of force to a smaller aread, around the rim of the hole. If
you use the screw that was designed to fit the hole, you'll transmit
the full amount of force over the entire surface of the countersunk
hole, making the screw less likely to twist out.

--
Chuck *#:^)
chaz3913(AT)yahoo(DOT)com
Anti-spam sig: please remove "NO SPAM" from e-mail address to reply.


September 11, 2001 - Never Forget


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