Pulse/Larsen NMOKHFCX roof mount antenna
Larsen NMOKHFCXMPL vehicle roof mount antenna installation hardware kit is an NMO mount for Motorola-style mobile antennas 0-1000 MHz. This is a nickel, copper, and zinc alloy permanent mount is for a 3/4 inch hole in mounting surfaces from 0.1 to 0.03 inches. 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 cable. The connector is sold separately. Thread size is 1 1/8 inch - 18