Telenco CS 1500 suspension bracket is an aluminium alloy hardware offering high mechanical performances. CS1500 installs on all type of poles: drilled or not, steel, wooden or  concrete made. For drilled poles, installation is to realize with a bolt 14/16mm. the total lenght of the bolt must be at least equal with the pole`s diameter + 20mm. For non-drilled poles, bracket is to install with two pole bands 20mm secured with compatible buckles. We reccomend you to use SB207 pole band together with B20 buckles.