Small button loop screw fits all of our conchos.
Loop is 8mm x 7mm O.D., 4mm x 2mm I.D.
In order to have the loop fit tight against the screw post,
the threaded part is very short so it works better on some
conchos than others. So, put a small amount of glue or
clear fingernail polish in the threaded pipe on the back
of the concho before inserting the Button Screw.
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