These pictures aren't exactly small in filesize, and there's 3 of them...


A note - the teeth on the center section don't have to be sharp like in the picture...prolly would work better if they were squared off instead. The idea with this one is that you can just push a ring on from the side and snap it on or off.


I think this one might work better than snapping it on or off...


The type of screw I'm thinking about is the little ones used for tweaking pan cars...