Dave Sr. from SWISCO responded:
November 1, 2017
Thank you for your inquiry. I am not sure what type of door or hardware you now have, but take a look at our 40-039 dead bolt lock. This lock can be used on storm doors from 1" thick up to 2-1/4" thick. It is used on out swing doors only.It comes with a template for new installation. You will need to drill three 1/4" diameter holes at 1-3/4" spacing from the center of the top hole to the center of the bottom hole. You will drill these three holes using the template to get the proper distance from the inside edge of the door. It's approximately 7/8" back from edge. I hope this has answered your question.
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