PCTEL (Maxrad) NMO-60-204-B1-A vehicle roof mount antenna installation hardware kit is for NMO mobile antennas 0-1000 MHz. This NMO mount is a brass permanent mount for a 3/4 inch hole. The PCTEL mobile antenna mount includes 17 feet of RG58/U solid center conductor cable with a BNC male connector attached. Thread size is 1 1/8 inch - 18.