mortise fell in

A quick learner from Woodbridge, VA says:
November 21, 2017
The mortise lock in my patio door is no longer usable. It fell into the door. I have ordered and purchased a few different locks and all of them were too large. The last model ordered was the 82-218. The screw holes lined up but the body was too wide and the length was too long. The body of the lock is only 1/2' wide and the opening is 3 1/8" from top to bottom. Its rounded on the top and bottom as well.
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Tom from SWISCO responded:
November 28, 2017
If your old mortise lock fell into the door, odds are it was the 82-218. I've had a lot of customers tell me that the 82-218 was too big, but in every case it ended up fitting. I think the manufacturer intentionally makes them to be a little big, probably so that the tight is fit. I am confident that it will install in your door. I also recommend watching the video below to see how to install it without the risk of it falling into your door again.
Mortise Lock, Round Face, 3-11/16"
Mortise Lock, Round Face, 3-11/16"
82-218
$11.70
How to install a Legacy Handle Set
How to install a Legacy Handle Set
VIDEO
WATCH >
How to install the 82-218 Mortise Lock
How to install the 82-218 Mortise Lock
VIDEO
WATCH >
How to maintain a sliding glass door
How to maintain a sliding glass door
GUIDE
READ >
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