Are the 39-044 screw holes threaded?

A quick learner from Athens, Ga says:
Are your screw holes threaded?
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Dave Sr. from SWISCO responded:

The 39-044 does not have threaded installation holes. My recommendation is to use a flat head machine screw that is long enough to go through the back of the window sill and pass through the operator body, then secure it with a threaded nut on the face of the operator housing.

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