Triple track storm window corner bracket

A handy person from St Charles, MO says:
September 15, 2022
I have triple track storm windows, and this corner bracket broke. I can't find anything like it. Help.
Thumbnail of the uploaded file named A0D0D065-A9D4-4EEE-9110-8737271903E7.jpeg
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Dave Sr. from SWISCO responded:
September 19, 2022

Hello, thank you for posting,

I could not find a corner to match the ones in your photos. It looks like the type of corner used to hold the storm window main frame together. If it is, my suggestion would be to use the flat corner supports like the 20-012 along with the 33-071 sheet metal screw. I have used this type of bracket in the past to repair storm windows. I would install one at each broken corner on the outside of the frame. However take a look at the other corners listed to see if you could adapt one of these. If the dimensions match up to yours you could possibly retro fit one of these to repair your frame.
#6 x 3/8 SS Pan Head Screw
#6 x 3/8 SS Pan Head Screw
33-071
$0.21
SeasonAll Screen Corner
SeasonAll Screen Corner
95-252
$1.37
Internal Corner
Internal Corner
95-012M
$0.72
1/4" x 1/4" Self-Lock Window Corner
1/4" x 1/4" Self-Lock Window Corner
95-192
$0.70
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