Need pivot rod clamps

A quick learner from Canada just above North Dakota says:
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
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Emily from SWISCO responded:

Hi, Gwen.

Yes, this actually reminds me of our 21-154. Take a look at the specifications and see what you think. 

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