Hello,
It's tough to say with the keeper still installed but the 90-283 would be a good place to start. Review the specifications below to see how they compare to yours.
To determine what sash lock might work for your repair, we would need you to write out the exact distance between the installation hole centers to compare to our inventory. Thank you!
Any number of sash locks could work with this keeper, which is why we would need to confirm your installation hole spacing to narrow down your options. Thank you.