I am looking for a replacement lock for a sliding patio door. It is an inner lock and the measurements of the opening are 80 mm long and 13 mm wide with a rounded face. The distance between the centers of the two screw holes is 92 mm as best I can measure. The original lock fell into the door frame and I do not know how to retrieve it!
Thanks for your help!
Sliding Patio Door Lock

Home Owner from USA
Apr 14, 2014 10:08 am
6 Replies

Tom from SWISCO
Apr 14, 2014 12:42 pm


Thanks for posting. Based on the distance between screw hole centers, I think you should consider our 82-218, which seems to match. Does this look familiar? Be sure to also watch our video on the proper method of installation.

Quick Learner from USA
May 7, 2014 2:17 pm
I added this Monday a comment but I do not see it. I stated that the lock I received 82-218 does not fit because it is too tall: the opening is only 80 mm long and this lock is a 100mm long. Thanks

Tom from SWISCO
May 7, 2014 3:36 pm


I'm sorry to hear the 82-218 didn't work for you. What is the distance between the two installation holes, center to center? Can you also give me the dimensions in inches? Thank you!

Home Owner from Niles MI
May 11, 2014 5:12 pm
The distance between both centers of the screwholes: 3 and 5/8th inch
The cut out opening for the lock is 3 and 1/8 inch long and 1/8 in wide.
Thanks for all the help!
The cut out opening for the lock is 3 and 1/8 inch long and 1/8 in wide.
Thanks for all the help!

Dave Sr. from SWISCO
May 15, 2014 10:18 am


So I took a closer look at the 82-218 Mortise Lock in our stock to check on the measurements: the exact hole centers are 3-11/16" (as listed online), which is just a little over 3-5/8". Then I measured for the hole cutout for the door and that measures 3-3/16".
Both of these measurements look fairly close to yours.
And about your width being 1/8" wide, the 82-218 is 1/2" wide-- your 1/8" width measurement seems too narrow, so if you could, send us a picture with the measurements so we can confirm what you're working with.
Once we can take a look we'll be on our way to helping you identify a replacement part.
Both of these measurements look fairly close to yours.
And about your width being 1/8" wide, the 82-218 is 1/2" wide-- your 1/8" width measurement seems too narrow, so if you could, send us a picture with the measurements so we can confirm what you're working with.
Once we can take a look we'll be on our way to helping you identify a replacement part.
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