Tom from SWISCO responded:
May 1, 2015
We also have the 84-017, which is 1" in diameter and 1/4" thick. I'm not sure if its center fastener will get in the way, though. You may need to go to a local hardware store and see if they have an alternative method of securing this wheel to your door that will not interfere with its operation. Since your door appears so old, you may not be able to get away without a little retrofitting.
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