Adding External Key to Value Sliding Glass Patio Door

Question

I have a Value Sliding Glass Patio Door that is 1.5" thick door with an internal lock - and no external key mechanism. Handle is 3 & 15/16" apart. The double hook mortise lock appears the same dimensions as Product (82-238), but the lock cylinder is in a different position - centered on handle holes - offset by ~1/4". My exterior door handle has an extended cylinder, but it is off center from the lock mechanism.

How can i add an external key to this door?

User submitted photos of patio door hardware.

Dave Sr. · Accepted Answer

It does look like you could use the 82-310 key cylinder. I see what you are saying by the off set position, though. Take a look at the complete handle set, 82-081, to see if this could be used on your door.