Truth patio secondary lock

Hi, Maria. We carry a lock similar to this, which would be our 82-051. The bad news is that it looks like the locking "stem" on ours is a lot shorter than yours. That tells me that you have an older version that I don't believe is made anymore.

Ours can still work, but you'll have to pack out the keeper the stem locks into to make up the difference. Your keeper should look something like our 82-053, which can be packed out with washers.