Only marking on lock is "On / Off' for night lock

Question

Main locking slide (cast Al presumably) broke. House was built in 1989, original door and lock. Door is 6' wide Aluminum that is 1" thick. Opening in slider is rectangular approximately 7 1/8" L x 3/4" W. Pictures are of lock installed and removed. Dimensions between center of screw to center of screw is 6 1/2", installation screws are probably longer than standard, as they go through wooden handle bracket as well. I am thinking this may be a 82-002K - (listed as 6 5/8") ???? Also, do I match tooth closest to the dimensions of one I am removing?

User submitted photos of patio door hardware.

No OEM markings found on lock, or door, some on glass.

Paul · Accepted Answer

You appear to have an Alenco patio door made back in the 1980's. I recommend our 82-002K patio door lock; just match up the tooth to the old one to confirm they're the same. You might have to reuse the old screws from your lock for the wood pull. This was a popular lock in the last century.