A distributor from dire need Denver Colorado says:
November 12, 2010
plastic [1.25 by .50 by .25 inches ] adjustable top and bottom pivot pins that slide in track with machine screw on hinge side of door frame.
Here is a picture of my pivot pins.
Donna from SWISCO responded:
November 19, 2010
I believe this shower door pivot is Discontinued and No Longer Available; we used to be able to get just the pivot pin portions but even the pivots are discontinued. Unfortunately there is no known substitute.