its all unknown

A landlord from sacramento says:
I have no clue what it is. Its broken, so there is no way I can detatch. Appears the plastic guide was screwed in w/ zinc screw and its rusting out. Please help!
User submitted photos of shower door hardware.
Profile picture of Paul
Paul from SWISCO responded:
Please see our 10-127 shower door guide. I think this could be what you need.
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