Part needed to hold crank mechanism in place

Question

The photos above show the "ring nut" that does not stay in place when I crank the window closed. The crank "driver" mechanism (photo 1) is held in place using this "ring nut" screwed securely into the crank fitting (photo 5) to hold it snuggly in place (photo 4).

Since the ring nut is old and threads seem to be stripped, the "nut" pops out when I try to close the window ... the driver just unwinds and comes out of position. This is the second window crank that has done this, but at two different homes and two different window manufacturers. I might need a tool to drive and secure the nut in the crank mechanism. Actually that may be all that I need in order to tighten the "ring nut" into place to hold the crank mechanism securely in place.

What do you suggest? Parts? Drivers?

Casey · Accepted Answer

Hello,

We'd be happy to help but since the spline that the handle attaches to is not repairable, the entire operator will need to be replaced. To get started, we'll need to see your entire assembly with the window open so that the arms that move the sash are fully visible to compare to our inventory. Thank you!