No, it uses four 4-40 bolts through to a backer plate. I couldn't fine any stud type other than what I used on the stabs, and they seemed overkill. On the stabs I had to cut and redrill the part that comes forward to the hinge line, the whole thing did not seem well thought out, I'm a little disappointed with those stud horns. The best thing to do would have been to buy your hardware package, but when you have more stuff than most hobby shops you figure you already got everything you'll need, I just haven't been doing large planes that long.

It's a good thing I did another engine run and shake down test today, I forgot to Locktight one of the aileron servo arm screws an it shook out. [:@] It was nice it was sitting on the ground though I even found the screw.

So far this is the best ARF I've ever assembled, only two thing are not perfect:

First the holes for the hinges are a little too large, so you almost have to use PolyU glue on them, they are perfectly drilled, but if you drill them the right size you can't get them out without them ripping wood on the way out so I understand why they do it. I would rather they drill the right size holes then just tape the surfaces on, and have the hinges in a bag.

The second is so common I've never seen an ARF without this problem. The starved horse look. They cut the bulkhead to the shape they want the fuse to be, but using stringers it will never be that shape, so the should relieve the bulkheads so that the covering flows the length of the fuse with the stringers.