I'm making a simple "thing" to test out a simple part of something much bigger I'm designing, but am not experienced enough to figure out what I can do to keep the main screw from loosening. Is it even possible to keep the screw from loosening under vibration? If so, what can I add (and where) to keep this screw in place under moderate vibration? It's basically a screw going through a threaded piece of metal. The metal strip is attached at it's center to a bow-like apparatus (two strips of thin metal attached to each other that will bend). The threaded metal piece is attached to the inner strip and the screw, coming through a hole in the inner strip, is attached to the outer strip. When the screw is tightened, it will expand the bow. The formatting wouldn't work, so imagine the s's are empty space. sssssssssssss_____ sssssssssssss| ___| sssssss __---sss|sss--- __ __ ---sssssssss|sssssss--- __ sss --- __ssssss|ssssssss--- sssssssssss--- _|_--- sss----------------------------- sssssssssssssss+ There's probably a very simple solution to this, but I have no experience with any of this stuff. I'm just a math guy LOL.