This is a three door sliding door shower, the long piece its about 2 inches long and goes inside the bottom door, its completely inside the door held by a screw on {the picture} and the hook or what hooks on the frame like a ninety degrees hook, goes in the Side bottom track.
Paul from SWISCO responded:
March 19, 2018
We don't have this exact part. It seems similar to our 10-127, but I'm not sure if this can work. I wonder if yours is an older version of this. Look it over and let me know what you think.