Round spline wont go in square hole
I have changed out window screens in the past but, this one is giving me a very tough time! I was unaware that there was a 'flat' spline... Is that what I need here? Because it's really hard to push round 0.220 into this space,although opening measures 3/16.. damaged the screen twice now..stopped...found you and am hoping you have the answer for me!! Thank you in advance!