Screw extractors & Nylon mounts
Screw extractors (Mechanics call these easy~outs) are made in two ways. the first is a screwdriver with seareated (Jagged) teeth, the second is a hollow tube, which also has jagged teeth, both sometimes will extract a screw, other times you just have to try to drill the thing out and hope you don't break your drill bit, or slip off due to screw hardness and go though the soft frame.
As to nylon rimless and nylon suspencion mounts, I used to use ribbon, then I used strapping tape, then as stated earlier in this thread, I found that another peice of #20 fishing line is far superior for getting between the lens and line.
Another caution, if nylon rimless mounts are done with the nylon too snug, (as done in even the demo lenses in Charmant frames) the nylon can shrink with exposure to the sun and elements, This can and will actually result in warpage of the lens with time.
:hammer: Chip