Mike, this is a great help. I have two more questions: 1) Is there a better replacement for the pull pins than the ones I already have (pic 3) that keep breaking...maybe something with a spring and more weather resistant? I don't mind drilliing out the holes if necessary. 2) How do the nylon panel pulls get installed, under the spline? Will they weather and break, or will they hold up? If they'll weather and break, is there a substitute part..maybe metal?
The black snap on cap takes up the 1/2" on the pin. Other screen manufactures have used this pull pin with this metal.
Now if these are 1 1/2" long and the plastic pieces are just over 1' long, aren't these too long?
How do I determine which size spline to use?