Square or Round top zinc plated or Hot Dipped Galvanized steel u-bolts are designed for outdoor corrosion resistance. Use for mounting tubing & Square brackets , designed to support most WiFi , PCS, Cellular, and TV antennas. Allows you to vary the mounting pipe length and diameter,
You can increase the amount of strength and holding power by utilizing multiple mounts space out over the length of the mounting pipe. There are many reasons you might need to use these mounts and they mostly involve the need to attach a pole to another pole to either extend the original or simply as an attachment point.