A quick learner from Canada just above North Dakota says:
March 21, 2022
I cannot find a manufacturer on my 1960's metal bi-fold closet doors, but I have several of these pivot rod clamps where the plastic around the rod has snapped off (photos). Cannot find the part locally in the hardware stores. Do these look familiar to you, and do you have the parts I need? Thanks.
Gwen
Emily from SWISCO responded:
March 22, 2022
Hi, Gwen.
Yes, this actually reminds me of our 21-154. Take a look at the specifications and see what you think.