Premium Quality Replacement PartSpindle Blade Bolt with NutFor Scag Models:MAG-61 (MAG-72) – Scag Magnum III Three-Wheel Riding Mower (SN: 60000 – 69999)CUTTER DECK MAG-72MAG-61 – Scag Magnum III 61″ Three-Wheel Riding Mower (SN: 70000 – 79999)Cutter DeckSCZ48V-22FX – Scag Cheetah 48″ Zero-Turn Mower, 22hp Kawasaki (SN: J9600001 – J9699999)48V & 52V Cutter DecksSCZ48V-23CV – Scag Cheetah 48″ Zero-Turn Mower, 23hp Kohler (SN: J9700001 – J9799999)48V & 52V Cutter DecksSCZ48V-26BS – Scag Cheetah 48″ Zero-Turn Mower, 26hp Briggs & Stratton (SN: K4400001 – K4499999)48V & 52V Cutter DecksSCZ52V-23FX – Scag Cheetah 52″ Zero-Turn Mower, 23hp Kawasaki (SN: J9900001 – J9999999)48V & 52V Cutter DecksSCZ52V-25CV-EFI – Scag Cheetah 52″ Zero-Turn Mower, 25hp Kohler (SN: K0100001 – K0199999)48V & 52V Cutter DecksSCZ52V-26BS – Scag Cheetah 52″ Zero-Turn Mower, 26hp Briggs & Stratton (SN: K0200001 – K0299999)48V & 52V Cutter DecksSCZ61RD-31FX – Scag Cheetah 61″ Zero-Turn Mower, 31hp Kawasaki (SN: P0400