Sash and lock replacement

Thanks for posting. Generally Andersen windows use locks made specifically by Andersen, such as the 90-095, 90-295, or 90-324. You'll need to compare all these options to your old sash lock to see if any match up. If in doubt, please send us pictures of your existing lock and tell us the distance between the center of each mounting hole, and we'd be happy to find what you need. 

Hello! All three products mentioned come with all screws needed for installation.

Please let me know if I can answer any other questions and I will do my best to assist.

Sorry for the confusion, I was directly referring to the 90-095, 90-295, and 90-324 locks that I suggested in my first response.

The 90-274 lock does not come with screws, no. In that situation we recommend bringing the old screws to a local hardware store to have them match up the exact size, since the length can vary from window to window. It's not always going to be the same.

All that aside, I want to reiterate that there's still a chance that the 90-274 isn't the right fit for your window. I can't say for sure without seeing your original hardware, but based on the fact that you have an Andersen brand installation alone, you should triple check that. Andersen windows historically use very specific hardware that doesn't allow the use of off-brand parts.

This photo is a huge help, thank you. I don't think any of the four different locks we talked about here match what you're showing in this photo, but I do agree that the 90-274 is a potential replacement. It's ultimately going to come down to the placement of the holes. You can refer to the diagram below. You already said that the hole center spacing is 2-1/4", so that's good, but you also have to keep in mind the backset. As long as yours is the same for both measurements then the 90-274 is a viable option.

Dimensions for 90-274