FYI - Seems many of you are starting to tear into the 3DR Solo Gimbals to attempt a repair. Recently someone asked what the various screw dimensions were for the shaft adapter. Depicted is the Yaw motor shaft adapter and I will assume all the other adapters (roll and pitch) utilize same hardware dimensions. The philip's screw is the one that typically gets bunged up thread wise from the grub (set) screw securing it. Either the screw gets bent or the threads get deformed when the grub screw is not removed prior to disassembly. Long live Solo and their gimbals!