Quote:
Originally Posted by globaldesigns
I like your idea of the leveling screws, but I do think having my stand with 100% contact on the floor is the best, so I can live with the slight slant. Not sure about the wieght/pressure on those screws, but again I am not a master welder like you 
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just for you buddy.
I use 3/4" A325 Type 1 structural bolts. The allowable shear strength in single shear is 7500 lbs for a slip critical connection. In double shear its 15000 lbs. This goes up if you choose to do a bearing type connection. For the application I use them in the threads will withstand 1000 lbs per bolt, so for example my 8'er has 10 screw legs each withstanding 1000 lbs totaling 10k lbs. Then I weld a 1/4" x 4" round plate to distribute some more of the down force.