"Markem" wrote:

I use drywall screws for drywall, but wood no I do not them use as
they rust and break.
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SFWIW

Use coarse thread deck screws for temporary structures
such as mockups.

Use S/S, coarse thread self tapping sheet metal screws for
fiberglass assemblies and furniture applications.

Since only a few sizes are req'd, buying 100 pc boxes is not
a problem and helps keep costs in line.

Fine thread dry wall screws stay on the shelf at Home depot.

Lew