CENTURY HAWK 30 TAIL ROTOR HUBUse on: Hawk Pro Helicopter Kit [CN1000C] (replacement part) 5-Blade Electric/Nitro 600 size Scale Mechanic [CN1000S50-5] (replacement part) 4-Blade Electric/Nitro 600 size Scale Mechanic [CN1000S50-4] (replacement part) 3-Blade Electric/Nitro 600 size Scale Mechanic [CN1000S50-3] (replacement part) 2-Blade Electric/Nitro 600 size Scale Mechanic [CN1000S50-2] (replacement part) Century 50 size ARF Scale Mechanics [CN1000S-50] (replacement part) Century 30 size ARF Scale Mechanics [CN1000S-30] (replacement part) Hawk Sport (replacement part) Includes: 1 pc Tail Rotor Hub. 1 pc out of M3x4 SOCKET HEAD SET SCREWS [CNM3X4SS].