Man I had a lot of trouble figuring out what these things are called. I can tell you that they are not called F-Type, BNC, SMA, N-Type, or PL-259 connectors. In the I end I asked about this and learned these connectors are called Belling-Lee connectors, also known as IEC 169-2 Female/Male. But if you search for “IEC connector” (which these things are apparently sometimes called) you will only find the power adapters, not these aerial connectors.