Handle replacements

A quick learner from Huntsville says:
I have a broken handle on a FAMA storm door lockset. Your 40-101 handle pair is almost an exact replacement. Based on your pictures and dimensions, the only variation in dimensions that concern me is the diameter of the round handle shoulder where the square shaft is inserted into the interior handle. Is that measurement really 11/16 or is the overall diameter of the handle barrel 11/16? My FAMA measures 11/16 diameter overall but the shoulder near the square hole is only 9/16 diameter. Thanks!
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Tom from SWISCO responded:

Yes, the dimensions we list as 11/16" is the shoulder. Could you show me a photo of your complete handle set? That may help us find a good match.

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