Shower Door Bottom Guide Support Set

I have a shower door which doesn't seem to have any manufacture markings. The curved doors which open and close have rollers on the top and guildes on the bottom. They seem to be offset grey plastic with quarter turn plastic pieces which hook into the aluminum track to retain the bottom of the door. ... (cont.)

We bought 10-058 kit and it worked perfect for our moveable doors. Now we need this metal retainer part that broke to hold in an our immovable glass plates in our shower for each side. First few pictures is one that has not broken. Last picture is one of the 3 that broke. It is 7/8 to 1 inch long an ... (cont.)

Need 4 of these or similar. Cannot determine manufacturer. These act as guides to hold bottom of door in track. Help. All thoughts appreciated.

Please identify this part related to a shower set. Thank you.

this part secures the lower portion of the shower door for a maax centric framed corner square shower