THE CIMPLE COCoaxial Cable Screw On/Twist On Type Fitting/Connector - for RG6 Coax Cable - for Easy Installation (10 Pack)

If the end piece of the connector does not spin, then I have to spin the modem in circles to thread it on the end of the cable, right?

I see the dimensions of the rg6 and rg59 connector are the same (8mm od). this does not seem correct. can you confirm the dimensions?

Looks like one solid piece. Does the outer larger female end section spin free from the twist-on narrower end?

Will these screw-on connector work with RG-11 coax?