Carpe Iter Short Bracket 12mmCNC machined aluminum bracket for 12mm rod (standard diameter on most GPS or roadbook brackets, such as our Long Bracket or SS Bracket 70 or brackets for BMW Navigator including the stock bracket to be found on BMW models equipped with preparation for navigation kit). Creates platform with standard 30x38mm AMPS hole pattern. For M5 screws (compatible with Lightweight holder, but can be used for anything).