Anderson window

Hi there!

Thanks for reaching out to us. I'm afraid we aren't familiar with the lock shown here. Can you write out the distance between the two installation holes, measured from center to center? Can you also write out the backset? That's measured from the center of the installation hole to the top edge of the lock body as shown below. I can't promise we'll have a suitable replacement but those details should help us confirm. 

Thank you. Unfortunately, we don't sell a lock that matches what you're searching for. Your best bet may be to contact the original manufacturer of the window. I am very sorry that we can't be of help with this repair; please let us know if you have any other hardware questions.