How to install 59-237

A handy person from Maryland says:
Dumb question.. just received "t" spline 59-237 ... I think I know how to install it, but could you either send me a photo on how to properly install it? Have replaced many screens, but using round spline...
Thanks, Joe..
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Dave Sr. from SWISCO responded:

Hey, thanks for contacting us. I sympathize with your frustration; the 59-237 is an awkward spline to install. I find that is kind of rolls when screening in the material into the frame, which can be annoying. Unfortunately, there's not much of a trick to it. It installs in more or less the same way as you would round spline. I would suggest using a screen tool like the 75-019 to make it easier, but aside from that it just takes patience and a steady hand.

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