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Fits 1.5mm motor/gearbox shafts. Mounts GWS HD and other props with 4mm bore perfectly. Locks on with set screw. Socket head fastener & aluminum washer holds prop onto 4mm boss. Requires (not included) .89mm wrench. If you don't have one, order part number RRCLWHK below.
Hex wrench that is included with RRCPA1.5-2-4 prop adaptor. If you obtained one of the 1.5mm set screw type prop adapters elsewhere but can't get it tight due to the poor wrench, here is the good wrench we include with ours. allso required to mount the RRCPASS15 prop adapter.
Fits 2mm motor/gearbox shaft, locking on with set screw. Screw & aluminum washer holds prop onto boss style shaft with steps for 3, 4 & 5.5mm bore props.
Fits 2mm motor/gearbox shaft for 280, 370, locking on with set screw. 4-40 aluminum bullet nut holds prop onto boss style shaft with steps for 3, 4 & 5.5mm bore props.
Short Prop Adaptor for 2.0mm (0.8") motor or gearbox shafts. Has 6mm (0.24") prop shaft outside diameter. Prop secured to shaft with set screw and washer.
Fits 2.3mm motor/gearbox shaft, locking on with set screw. 4-40 x 1/4" long socket head fastener and aluminum washer hold prop onto 6mm od 5/16" long boss.
Short Prop Adaptor for 2.3mm (0.9") motor or gearbox shafts. Has 6mm (0.24") prop shaft outside diameter. Prop secured to shaft with set screw and washer.
Long Prop Adaptor for 2.3mm (0.9") motor or gearbox shafts. Has 6mm (0.24") prop shaft outside diameter. Prop secured to shaft with set screw and washer.
Prop Adaptor for 3.2mm motor or gearbox shafts. Adapter secures to your shaft with a set screw. Prop mounting shaft diameter is 6mm (.235"). Shaft Length is 27mm.
Long Prop Adaptor for 3.2mm (0.13") motor or gearbox shafts. Has 6mm (0.24") prop shaft outside diameter. Prop secured to shaft with set screw and washer.
Short Prop Adaptor for 3.2mm (0.13") motor or gearbox shafts. Has 6mm (0.24") prop shaft outside diameter. Prop secured to shaft with set screw and washer.
Fits 5mm shaft, Prop shaft is 8mm od and 22mm long. comes with both hex nut and jam type bullet nut. Backplate is cut for wrench.
SKU Number: RRCPA5/22L
Set Screw Prop Adapters
A set screw prop adapter fits over a motor shaft and clamps with a small screw, giving a quick way to mount a propeller without a threaded collet. This category covers adapters that step a motor shaft up to a range of prop bores.
Shaft and Bore Sizes
Options such as the 1.5mm Prop Adapter to 4mm Boss and the 1.5mm shaft to 2 and 4mm prop bore adapter match small shafts to common prop hubs, while the MPI Prop Adapter for a 2mm motor shaft uses a boss-style set screw mount. Matching the adapter bore to your shaft and the boss to your prop keeps the prop running true.
Related Hardware
The RRC 1.5mm prop adaptor with a 1.5mm shaft and a 50XC Prop Adaptor Hex Wrench round out the mounting hardware for small setups.
Browse the set screw prop adapters below to fit your motor.
 "1.5mm Prop Adapter to 4mm Boss")
 "MPI Prop Adapter 2mm Motor Shaft Boss Style Set Screw Type")
 "MPI Prop Adapter 2mm Motor Shaft, Boss Style, Set Screw, Bullet Nut")
 "RRC 2mm Set Screw Type Prop Adaptor - Short")
 "MPI Prop Adapter 2.3mm Motor Boss Style Set Screw Type")
 "MPI Prop Adapter 2.3mm Motor Shaft, Set Screw Type, 5mm (3/16\") Prop Shaft Bullet Nut")
 "RRC 2.3mm Set Screw Type Prop Adaptor - Short")
 "RRC 2.3mm Set Screw Type Prop Adaptor - Long")
 "RRC 3.0mm Set Screw Type Prop Adaptor")
 "3mm MPI Prop Adapter")
 "3mm MPI Prop Adapter Long Shaft")
 "RRC 3.2mm Set Screw Type Prop Adaptor")
 "RRC 3.2mm Set Screw Type Prop Adaptor - Long")
 "RRC 3.2mm Set Screw Type Prop Adaptor - Short")
 "MPI Prop Adapter 3.2mm (1/8 inch) Motor Shaft, Set Screw Type, 1/4-28 Prop Shaft Bullet Nut")
 "RRC 4mm Set Screw Type Prop Adaptor - Long")
 "RRC 4mm Set Screw Type Prop Adaptor")
 "RRC 4mm Set Screw Type Prop Adaptor - Short")
 "RRC 5mm Set Screw Type Prop Adaptor - Long")
 "MPI Prop Adapter 5mm Motor Shaft, Set Screw Type, 8mm Prop Shaft Bullet Nut")
 "5mm x 22mm Long Shaft Prop Adapter")