06-19-2012, 08:32 AM
Offhand, I'd guess a t-nut each good for 500 lb lift, easy. I'd use them to secure 4 lifting rings, and use the load leveler gizmo. Wouldn't want the t-nut to slide, but you don't want them too tight - you'd add that bolt load to the weight lifted for a total load on the nut & slot. In use, we probably apply several tons of tension on each t-nut. That would give you a large safety factor, figuring at 500 lbs each. Your table probably weighs not more than that, so use 4 points and have no worries. :)