TUAIC Spindle Blade Nut 3-Pack – Flanged 5/8-Inch Hex for Cub Cadet ZT, MTD & Troy-Bilt

Overview

Meet the TUAIC Spindle Blade Nut 3-pack. This aftermarket set is designed to deliver reliable blade retention across a range of riding and zero turn mowers. The nuts are flange-style and built for a secure seating surface, with a 5/8 inch thread that aligns with common spindle configurations. Use on either the blade side or the pulley side to fit your maintenance workflow, and keep your mower’s cutting performance steady as you work through the season.

What you get

• Three flange-style spindle blade nuts for easy replacement
• 5/8 inch thread with a flange for stable seating
• Interchangeable with widely used part numbers in the 712-0417 and 912-0417 families

Compatibility highlights

• Fits Cub Cadet zero-turn models such as RZT50, RZT54, and RZT42
• Suitable for MTD riders in the 600 and 800 series
• Works with Troy-Bilt and other brands including Craftsman, White, Toro / Wheelhorse
• Interchangeable with 712-0417A, 712-0417, 7120417, 912-0417A, 9120417

Durability and installation tips

Designed to withstand regular mowing duties, these nuts help maintain secure blade seating in varied conditions. Keep a spare set on hand to minimize downtime between service tasks. When installing, clean the threads and snug the nut by hand before final tightening with an appropriate wrench. Avoid overtightening to preserve thread life.

Why choose this 3-pack

Having a 3-pack on hand offers practicality for households with multiple mowers or frequent blade maintenance. The flange design promotes flush seating, while the 5/8 inch thread matches many common spindle configurations. This kit provides a cost-effective replacement option without compromising on compatibility or performance for everyday mowing tasks.

Notes on usage

Turn off the mower and disconnect the spark plug before any work. Use standard safety practices, and consult your mower manual for model-specific guidance. This set is intended as an aftermarket option that aligns with several popular spindle nut specs for convenience and uptime.