My projector weighs 8 pounds and is using (4) 4mm screws to hold it is all. I think you will be fine.
http://www.avsforum.com/avs-vb/showthread.php?t=846744
http://www.avsforum.com/avs-vb/showthread.php?t=846744
Quote:
Originally Posted by bqmeister /forum/post/0
I've got a universal spider type mount with 4 'spider' legs. It's a peerless mount.
Works great.