GPS mount for M8 thread1" ball with M8 screw, socket arm, GPS mount. GPS mount for threads The 1" ball of the GPS mount is attached to the motorcycle by a bolt that simply replaces the original one. The pivoted socket arm enables optimal positioning of the GPS device. The GPS holder with its universal drill hole pattern allows the secure attachment of many current models of GPS devices such as Navi Case Pro device cases and smartphone hardcases from SW MOTECH. For M8