Corner Tilt Latches Possible Harvey Classic
I'm afraid we don't have a tilt latch exactly like yours, but the only one we carry that works as you describe is our 26-111 and 26-110. Look these over and see if you could potentially uses these to repair your window. You may also want to consider our 26-119 thumb actuator; even if the 26-111 and 26-110 work, there's no guarantee that your old thumb actuator will connect to them.
Ah, I see. I'm afraid that we weren't able to find anything closer. If the 26-111 and 26-110 won't work, I'm afraid that we have nothing else that will.
The only other solution I can think of is to reinstall the old latches just so that they hold the frame together, then installing two surface mount latches on top. We have a video on how to do this that you may find helpful.