OMPHOBBY M4 Helicopter Feathering Shaft OSHM4006 Sale! from 368 /per Qty. Add to Cart This is a replacement feathering shaft for the OMPHOBBY M4 Helicopters Contents Feathering Shaft Φ5x73mm-2socket cap screw M3x6-4Washer Φ3xΦ6.5x0.5-4 Qty available:10 SKU:OSHM4006