This is a pack of APC Electric Propeller Adapter ...
apter Rings, for use with thin electric propellers with diameters of 8" and above. Also fits all mult-rotor propellers of all diameters. Included sizes: 1/8", 4mm, 5mm, 6mm, 5/16" This product was added ...
features a 8mm shaft and includes three cap head screws and a L-shape allen wrench. Features: 1.375 inches (1-3/8") from Mount to tip of shaft 8-32 internal thread 8 x 1.25 external ...