Tilt latch, window lock, and the spring deal with pivot point. I think there called.

A quick learner from Lewisville says:
I believe the spring tension is a cable/string
User submitted photos of window hardware.
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Paul from SWISCO responded:
I have placed a personalized list of related parts I believe may work for you. That list is located on the upper right hand side of this page. I encourage you to review each product carefully to see if you are able to use any of these pieces. If our measurements are not aligned with yours, please let us know how they differ.
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