Screws for 39-141 casement window operator

A quick learner from Venr says:
What size screws fit 39-141 crank window operator. Thanks

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Dave Sr. from SWISCO responded:

Hello, thank you for posting,

We recommend taking one of the original screws to a local hardware store for them to match up the correct type and size for a replacement. Please let us know if you have any additional questions. 

Anatomy of a casement window
Anatomy of a casement window
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