Funny how the topic changed from machine screw threads to sheet metal screws, but it is all good information.
Brions come along test on machine screws vs. sheet metal screws seemed to give a good answer on what is appropriate for the best holding under a load.
Great device, that come along. It may be a good device to have on board for helping a jury rig.
Thanks to all who replied to my post. And fair winds to all.
Seawolf aka Bob
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