The Laird MB8L vehicle roof mount antenna installation hardware kit is for Motorola-style mobile antennas, 0 – 1000 MHz. This NMO mount is an all brass permanent mount for a 3/4 in hole. The Laird Technologies mobile antenna mount includes 17 ft of RG-58A/U stranded cable. Order connector separately. Thread size is 1 1/8 in-18.