works amazing. It fits my plenum cat6 cable perfectly. It's a little snug, but I want that. My only complaint is it'd be nice if these had a cover...

I printed the 4 mm version and the 10mm version, and both worked great for my needs. I did have a little trouble getting the print to not fail, but it was easier then most of the other screws I've tried. Like with all 3D printed screws, these are fragile