Patio Lock

Thanks for writing in. Are these two different sliding doors in your photos? I'm afraid it's not really clear from these photos. It looks like the 82-218 mortise lock might be what you need; but I see the mortise lock in your second photo has a faceplate as well, which would make it our 82-226. The handle set in your first photo has a thumb lever offset towards the bottom of the handle set, rather than perfectly centered between the mounting holes. If that's the case, you could use our 82-086 Keyed Handle Set. For any handle set where this thumb lever position is centered instead, however, you'd need to adapt the 82-315 Key Lock & Housing to the outside pull. See what you think. For videos on that key lock installation, as well, as the installation of the 82-218 mortise lock, see below.