On 1 Aug 2006 08:45:09 -0700, wrote:

Mary Fisher wrote:
"Frank Erskine" wrote in message
...

There used to be rules regarding ceiling fans in commercial premises,
such as that they had to be fastened to joists using studding (screwed
rods) rather than woodscrews.

surely those are more likely to come undone than woodscrews? 3" screws
should be very secure.

Not if you peen over the ends of the studding after fitting the nuts.

--
Frank Erskine