Window lock

A home owner from kalamazoo michigan says:
holes are 2 1/8" on center. Part is 2 3/4" x 1 1/8".
Thumbnail of the uploaded file named 16622174985653423606648688071808.jpg
Thumbnail of the uploaded file named 16622176672783701586318722612648.jpg
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Emily from SWISCO responded:

Hi there!

I'm afraid we don't have a sash lock with the hole center spacing you need. Can you triple check that measurement for us? Can you also write out the backset? That would be measured from the center of the installation hole to the edge of the lock. You can use the image below as a reference for what I mean. The 7/16" measurement would be the backset. 

Alternate image for 90-077A
Alternate image for 90-077A

A home owner from kalamazoo michigan says:
Thank you for responding Emily. I am amending my hole center measurement. It's 2 1/16". The backset is 11/16". Hope you have what I need. Ron
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Emily from SWISCO responded:

Thanks for confirming, Ron! We don't carry your exact lock but our 90-278 has 2-1/16" hole center spacing and an 11/16" backset. Look over the specifications for this part and see what you think. 

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