Hey all, longtime no see.

I bought a new air conditioner for window and set my son's room window. It was single hung window so I needed to prevent window sliding up.

This is just it. For single hung window and sliding window both.

There are two bolts design one is 25mm length, the other is 50mm length. Choose one as your needs. Or find other M12 bolt design.

Attach "Fit" tip of bolt with glue after through nut, if you need. And this window stop jaw maybe need some gum tape not to slip.

I borrowed two designs bolt and nut. I had no time for new design before AC drop. ;)

1. https://www.thingiverse.com/thing:631392 by marceloelcram - 50mm M12 bolt
2. https://www.thingiverse.com/thing:144288 by Michaltrow - 25mm M12 bolt

Thanks two guys.