Casey from SWISCO responded:
April 22, 2024
Hello, Your sash lock reminds me of the 90-278 at first glance but the hole spacing measures 2-1/16". I'd recommend double-checking your dimensions since 1-1/16" is quite small for this type of lock. The 11/16" backset is also an important measurement. Take a look and let us know if you have any other questions. Thank you! Dimensions for 90-278
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