"I had no idea you could get these as a screw on, as opposed to crimped on. They are exceptionally easy to use but, make sure you use them on thick co-axial cable. If it is the cheaper, thin cable the F-connectors will not grip on. Otherwise, very impressed with these."
"These do a far better job than the normal coax plugs,easier to fit and more secure too.In the past I have joined coax with tape or normal male/female plugs but will use these in the future as you get a much better lasting connection ."