I need additional versions of these in white. I have tried 3/8 inch handles but they are too large to fit the crank shaft. The shaft is toothed, and around 1/4 inch diameter. The windows are from 1986/87.
Tom from SWISCO responded:
May 30, 2017
Can you confirm the exact diameter of the hole? I don't know anyone who makes a handle with a 1/4" hole. Could it be 11/32" instead? If so, see our 39-102.