Published by at 26 de julho de 2026 2PCS RC Model 2mm 2.3mm 3mm 3.17mm 4mm 5mm 6mm Motor Shaft Coupling Copper Joint Connector for RC Boat RC Car Model. Side screw holes are unified as M3. Sizes: 2mm to 2mm/2mm to 2.3mm/2mm to 3mm/2mm to 3.17mm/2mm to 4mm/2mm to 5mm/2mm to 6mm/2.3mm to 2.3mm/2.3mm to 3mm/2.3mm to 4mm/3mm to 3mm/3mm to 3.17mm/3mm to 4mm/3mm to 5mm/3mm to 6mm/3.17mm to 3.17mm/3.17mm to 4mm/3.17mm to 5mm/4mm to 4mm/4mm to 5mm/4mm to 6mm/5mm to 5mm/5mm to 6mm/6mm to 6mm.