Window screensI got these to replace the broken plastic ones on my screens. They seem sturdier with the pin being metal.Nice product and easy to use. BUT the die for making the metal piece was not aligned resulting in a oval cross-section. The small diameter was 0.2185 and the large diameter was 0.2215. The result was that it would not fit in the existing hole. I had to drill the large hole with a 15/64 drill bit then it worked properly. It would have been nice to have better quality control.didn't fit standard screensNice replacements. Wish I found them earlier.To use these on Marvin screens, you need to make the existing outside hole slightly larger with a drill. Once you have done that, they work much better than the lousy plastic things the Marvin screens come with that break all the time.Just what I needed to keep my screens in place. They are easy to install and do just as expected.WORKS GREAT PLASTIC SHOULD NOT DRY OUT FROM THE SUNS RAYS.Screen plunger worked perfectly and they were easy to install. Enough to replace all the plungers in the house (4 for each screen). My old ones were corroded and the springs no longer held the screen in tight. My cat was always pushing the screen out. Fast delivery. Would recommend.Perfect fit