In article ,
todd wrote:
"Andrew Barss" wrote in message
Charlie Self wrote:
: Mark Jerde asks:

:Charlie Self wrote:
:
: Do NOT use drywall screws.
:
:Why is that?
:

: They're brittle, so their shear strength is poor.

This is absolutely true. But I've never known why.
So ... why are drywall screws so hard and brittle?
They're designed to go through drywall, which is
not very hard, and then softwood 2xs.

Anyone know?

-- Andy Barss

Don't forget that they're also designed to be drilled into a metal stud.
Perhaps they are as hard as they are to be able to drill through the steel.

Maybe to save money - they are hardened so they aren't dead soft, and
then they save the tempering step.
--
--henry schaffer