Kyle ~
I'am like Crash with these heli's and just dig around looking for anything to work. Thinking out loud here, and guessing you may have these you may want to try to see if you have some extra servo arms that are plastic and cutting a portion of the arm to the size you need to use as lugs for those servos. It would actually be stronger than the nuts that you would have probably got anyway...Lol... If you had some small enough ones, you may be able to use one of the holes then for the servo screw to thread into hopefully. Dunno.... Just an idea. Really anything will work, you just need something for those screws to thread into and suck the servo up to the frame.
Cut up your credit card into little pieces and use it....