Crystal window lock replacements

Thanks for posting. Start by looking at our 90-161 Sash Lock and Keeper. Compare the dimensions listed below with your old lock and keeper and let me know if these measurements match your old lockset or not. If the dimensions of your old lock differ, let me know and I'll try and find something better. This replacement lacks those alignment nubs on the back edge, but that shouldn't make a difference so long as you replace both the lock and keeper.

Detail of 90-161