Great Planes Set Screw Prop Adapter 4.0mm to 1/4x28Tower Stock# LXMSF4 • Manufacturer Stock# GPMQ4936
with Set Screw and Prop Nut.
Mounts onto the shaft coming out of a gearbox or motor with the
One Prop Drive
Installation onto the motor or gearbox shaft.
Length: 1.5" (37mm) end to end