Regarding cables, I use the Eowave ones and they work well. I also have a few Tiptop stackable which are fun! For screws I have Knurlies which seem to work like the ones you have. Definitely helpful when your setup is moving a lot, however it also encourages tinkering with your setup which can be unhelpful too.
And as an added advice: get utilities! Something simple like Shades and Veils to mix, attenuate, invert and offset your signals can help you get a whole lot more from the modules you already have.