The Larsen NMOKHFCXMPL vehicle roof mount antenna installation hardware kit is a NMO mount for Motorola-style mobile antennas 0-1000 MHz. This nickel, copper and zinc alloy permanent mount is for a 3/4 inch hole in mounting surfaces from 0.1 to 0.075 inches thick. The vehicle roof mount converts to high frequency applications (0-6000 MHz) by removing the center pin.
The Larsen mobile antenna mount includes 17 feet of RG58A/U dual shield cable and a mini UHF connector. Thread size is 1 1/8 inch - 18.