Roller screw is stripped
Hello,
It sounds like you may be looking for a new bottom roller for your curved shower door. Unfortunately, I can't make out all of the details of your part while it is still installed. I can't guarantee that we can supply a suitable replacement but we'd need to see your part fully removed from the door to confirm. In the meantime, you're welcome to look through our selection of shower parts here. Thank you!
Thanks for getting back to us. Unfortunately, we do not carry a suitable replacement for the shower roller shown in your photos. I'm sorry that we won't be able to assist with this repair but please let us know if you have any other hardware questions.