Quote Originally Posted by Max
Does anyone know what brand/model cable release doesn't need threads to screw in?

I have an old commercial ektar in a #4 Acme shutter with stripped threads. Is there something that can slide on and stick with friction?
While there are a couple of proprietary designs for connecting threads, I've never seen anything that doesn't screw in one way or another, Max. You might contact SK Grimes (www.skgrimes.com) to see if they might be able to repair the shutter.