Great Planes Set Screw Prop Adapter 4.0mm Input/1/4x28 Output GPMQ4936

In Stock Online
Usually ships in 24 hours
$3.99 flat rate shipping! Learn More
This item earns up to 6 VIP Reward Points Learn More

This is a Great Planes ElectriFly 4.0mm - 1/4-28 prop drive (adapter) with set screw and prop nut.


  • Mounts onto the shaft coming out of a gearbox or motor with the included set screw. The propeller mounts onto this with the included nut
  • Aluminum prop drive
  • Metal hardware
  • Fits a 4mm motor shaft with a 1/4 prop shaft


  • Prop drive
  • 3.5x5mm set screw
  • 7/16 propeller nut

Requires: Installation onto the motor or gearbox shaft

End to end length: 1.5 (37mm)
Complete shaft length: 0.98 (25mm) with 0.69 (17.6mm) threaded portion
Prop shaft diameter: 1/46 (6.27mm)
ID for motor shaft diameter: 0.16 (4mm)
Largest part of hub diameter: 0.78 (20mm) thrust washer portion
Smallest part of hub diameter: 0.47 (12mm)

This product was added to our catalog on May 5, 2020