The PCTEL Maxrad NMOPFP195-NC vehicle roof mount antenna installation hardware kit is for Motorola-style high frequency mobile antennas up to 6000 MHz. This NMO mount is a brass permanent mount for a 3/4 inch hole. The PCTEL mobile antenna mount includes 17 feet of Proflex Plus cable. No connector is included. Thread size is 1 1/8 inch - 18.