Was curious about what info I could find on web...found on http://www.tsa.gov
a toll-free contact number (866-289-9673) so called (during typical business hrs) and got a rep who was very pleasant...asked about this specific item...he said they were looking at improving detailed specs of what is/isn't allowed...but until all security under TSA, it depends on individual airports security dept...said I could call and ask them...but since I'll be using BOS, I suspect they are more paranoid than some!
I asked if they could add these glass kits to allowed list..he took my name and said he would pass my request on...he agreed that common sense would permit it, like the tweezer thing...
And yes, my glasses sometimes loosen that screw in hours and sometimes it takes days!
Thanks AS_GSC for the definitions!