Broken side lock

Hi there! Thank you for reaching out to us. We don't sell a replacement or alternative for this latch, unfortunately. I'm afraid it was discontinued. Storm window latches like this are a dying breed since most homeowners are opting for vinyl windows. As a result, these latches are getting harder and harder to get as the years go by. I am very sorry that we won't be able to assist with this repair but please let us know if you have any other hardware questions.