The CM235 consists of rectangular plate, mounting bracket, U-bolts, lock washers, and nuts. It allows one peripheral with a magnetic base to be mounted to a crossarm or mast. Devices that have a magnetic base include the 31182.
The 30626 is an antenna mounting bracket designed for antennas with 3/4 in. IPS mounting threads. Because the 30626 is made from steel, it is suitable for mounting small magnetic-mount antennas typically seen with GPS patch antennas, such as the 31182.