George writes:

E Z Peaces wrote:
My aunt in another city wants to replace plastic shutters that are
about 15 years old. She doesn't know how to get them down. Sliding
a knife behind a shutter, she can feel where the screws are, but
there is no screw head or plug on the face of the shutter.
Was there a way plastic shutters were hung a few years ago without
putting a fastener through the face?

I have shutters of about that vintage. From memory you drilled a hole
and the shutter had a floating fastener that looked like a bolt but
instead of threads it had reverse barbs. You simply pushed it into the
hole you drilled until it was tight. Prying is probably going to be
the only way to get them out. And they will likely be somewhat brittle
from being in the sun.

15 years?

Not sure.

Mine might have been a bit older.
Before the plastic with barbs, they used
screws. The screw head was covered with a plastic
half sphere. Same color as the shutter, might be easy
to miss.

I'd say if you want to replace them, just yank one off.
The method of attachment will become obvious.