Dave Sr. from SWISCO responded:
May 18, 2017
We suggest using our 70-180 storm door clip and drilling a hole for the 33-020 screw. I'll tell you why I'm recommending this different kind of setup. In the last twenty five years, storm door companies have found that designing plastic retainer strips instead of using the old fashion storm door clips and screw is less expensive. The problem is every different door company and even the same company changes the retainer strip almost every year and it is next to impossible to stock them. That said, we find that using clips and screws like I suggested work just as well, and are actually even easier to install. See what you think.
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