Dave Sr. from SWISCO responded:
April 3, 2014
Sure, you may find these parts useful if you cannot reuse your old hardware: for each 39-054 operator, you would need three 33-081 mounting screws to attach the operator to the frame, one 33-067 shoulder screw to attatch to the linkage in the window frame, and one 33-207 bushing to go on the shoulder screw.
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