Simonton window locks

we are looking for replacement locks for all our windows (18 locks)
back 2 screws measure 2-1/4" against glass part



Hello there!
Thanks for reaching out to us. Can you write out the distance between the two installation holes, measured from center to center, for the lock? Can you also write out the back set? That's measured from the center of the installation hole to the top of the lock's body as shown below.





I'm afraid we can't read accurate dimensions from a photo of a tape measure. We will need to know the written/typed out installation hole center spacing and backset to confirm if we have a comparable match.
Thank you!

5/8" back set



I'm confused by your 7/8" measurement; the installation holes look farther apart than that. I know in your initial post you said that keeper's screws measure 2-1/4" but I don't know if that's measured from center to center or if it's the same for the sash lock.
Assuming it is, we do have the 90-274 but the backset is 11/16", not 5/8". We recommend you double-check and confirm the specifications to be sure.
