Thin brass eyelets crack all the time thats why I don't use them any
more. I've never had a nylon insert crack, but older pedal harps
usually have broken eyelets
> Metal can be tapped into place without risk of cracking.
nylon "taps" into place just as well and has the advantage of being
easier to drill and sand after installation.
There is two cents, about the price of an eyelet
Arsalaan