QUOTE(Optimusglen @ Aug 13 2021, 10:14 AM)
Yes, probably should have been embedded. There are some insert options that might work, but nothing that is going to be factory. I'd say find one that is the correct thread size for the screw and use some sort of epoxy on install.
Or even just find a different targa top, they are fairly common as most 914s rust out long before the tops deteriorate.
One of the inserts on mine had stripped threads, I just used a larger screw size and drove it home for now until a new top pops up nearby.
This is the 2nd top for my 914 that came with the car when I bought it. The PO kept one black and painted the other one Phoenix Red to match the car.