another idea...not screw in legs... locking collar
i used these tables with slide in legs that used a locking collar.......
also had a frame made out of 1 in sq tubing that gave a lot of rigidity
good tables for quick set up and being solid..... had a very rigid material for the top........ used 2 in alum for legs i think....... the combination of quick set up and solid shooting platform was great...... seemed more solid than my screw in leg table......... 2 in legs made a difference....
http://i18.tinypic.com/2djt7gw.jpg
http://i12.tinypic.com/2zqt1xv.jpg
If i can get a table made like this, it would be what I would want for a new table.......
(Man of Steel do you have your torch and welder working?????)
if you do go with screw in legs......
I made some brackets using pipe couplers..... cut at an angle of about 2 - 3 threads one side to the other....... then welded to a piece of flat steel..........
my table with screw in legs was not as solid as this one in the pic.... but worked pretty well.......
R