OK, pictures help. I'll pimp micsupply.com for a source.
THis is how a lot of us would put together a stand setup:
1) Buy a stand. I also recommend the Dynatran 806A stand as has already been suggested. I own an 806A and an AS9110. I suggest the 806A to start, it's small enough to use indoors. The AS9110 is really only suitable for festivals, at least IMO. Dynatran stands are plenty suitable for taping and the best bargain around.
2) On top of the stand you put an adapter. See a photo here:
http://www.micsupply.com/standaccessories.htm.
Scroll down the page until you find "Stand fitting w/ 3/8>5/8 adapter". The $17 dollar one.
The wing nut on the side holds the adapter onto the post at the top of the stand. The adapter terminates in a male 5/8 thread. The reason most of us use this kind of adapter is because a light stand usually has a tip that is either unthreaded or threaded to an inconvient size. The wing nut adapter allows you to put a 5/8 thread on any kind of stand tip.
3) A T-Bar screws down onto the the 5/8 thread tip provided by Part 2 above.
See a photo here:
http://www.micsupply.com/standaccessories.htm.
Scroll down the page until you find "Swivel T-bar". The $26 one.
That gets you a stand, with a tip that has a 5/8 thread, and the T-Bar screws down on that 5/8 thread.
Now that you know how we put a T-Bar on a stand, look carefully at the T-Bar photo. Notice the two screws one at each end? Most of us stand tapers have mics that use either a shockmount or threaded clip mount that requires an uncommon thread size - 5/8 27. The screw at each end of that swivel T-Bar fits a typical mic mount.
So now hopefully you have a better picture of what the typical hardware is, how it fits together, and why.
And you probably recognize something different about your rig. Since you are stealthing, I'm gussing your mics have alligator style clips, not any kind of screw mount? You don't need the screws at each end of that swivel bar. So you have more options to just kind of rig anything that will go on top of the lightstand to make a T and then clip your mics to that.
But I would consider just go ahead and get the setup I've described above, for a couple of reasons. First of all, you might decide at some point in time you want a different set of mics - if you go with something new that has a standard screw or shockmount, your rig will be ready to fly. The second reason is you will find most stand tapers like to carry a variety of clamps and bars because there is often a possibility to share a stand with other tapers - two rigs on one stand in a theater can make a big difference in how much room you have to enjoy the show.
And even more importantly you never know when someone else will make it to a show but their stand will not. This past spring I was taping Ratdog at the Beacon. I flew up the day of the first show, and had various hardware in my carry on just in case my stand that had to be checked did not make it. It didn't and fortunately I was able to hook up with a local taper who brought his stand and between the two of us we had more than enough hardware to put both of our mics on his stand. The airline brought my stand to my hotel the next day, so the second night we did the same thing this time using my stand and he did not have to lug his into the city.
Once you get into stand taping it's always a good idea to be ready to share. Even if you don't need a fullblown TBar right now, somebody else may *really* appreciate you having one with threads anyway. And by the same token if there is an open taping taping show in your near future and you don't have a stand yet, as long as you have cables long enough, look for somebody there with one. Taping has it;s fair share of snobs/assholes but most people will have no problem with letting you clip those small mics on their TBar.
Good luck, happy taping.