Locks for outside of sliding doors

Question

We want to install outside locks on our sliding glass doors.  Presently we can only lock on inside.  Our place was built in 1961 but we don't know when the sliding doors were installed.  Someone thought these are Norco Company doors but we couldn't find a name or number on the lock or door.  Hope you can help.  Thank you.

Lauren · Accepted Answer

Hello, thank you for posting,

It appears that your exterior handle has a punch out option to install the 82-310 key lock for exterior keyed access. Please review and let me know if you have any additional questions.

If you are interested in replacing the full handle set, please let me know!