Knife latch Question

Quick Learner from South Jersey

May 6, 2020 11:30 am

Hello! I am having trouble finding these latches to keep my screen in place. In the picture is the original latch (plastic) that was broken in three places. They came from windows manufactured by United Windows. Any and all help will be appreciated! Thank you!!

1 user uploaded image

5 Replies

Paul from SWISCO

May 7, 2020 3:53 pm

Many thanks for writing in. Plastic knife latches would be pretty unusual, as they would not last long under the UV rays from the sun. Please look and compare our two latches, the 70-172 & 70-174, to yours.

Home Owner from Maryland

May 13, 2020 8:59 am

I need to replace some of the rusty knife latches on my screens. Is there a video or a trick on how to remove the old ones? I am having trouble getting the old one out with out damaging the screen frame.

Dave Sr. from SWISCO

May 13, 2020 9:44 am

The trick I found was that you need to use a small flat blade screw driver so that you can sneak into the screen frame cut out and depress that "notch" or widen the cut out in the screen a little to bypass the "notch" on the clip. Try that and see if it works.

Quick Learner from Baltimore

May 20, 2025 11:36 am

My latch looks exactly like the one in previous picture. Dave Sr. from Swisco had recommended either 70-195 or 70-172. I am wondering if any of these worked for the Quick Learner from South Jersey, posted May 6, 2020 ?