The vinyl t spline in my aluminum patio sliding screen door seems to be about 11/64 (0.172) inches wide. The stem of the T is 1/8 inch, not that it is critical.
Do you have anything to replace it?
Tom from SWISCO responded:
June 8, 2011
Take a look at our 59-237 T-spline. The 59-237 measurements are very close to yours. The width is only 1/64" shorter.