Wacker Neuson 5000150959 Lock Nut M6 Clip Phosphate

The Wacker Neuson is a genuine OEM Lock Nut M6 Clip Phosphate designed for the CRT36 and CRT48 series ride-on concrete trowels, as well as the RD7H-ES tandem roller. Sourced directly through Wacker Neuson's authorized parts supply, this fastener matches the exact specification of the original hardware installed at the factory. It fits an extensive range of CRT models including the CRT36-24A, CRT36-25, CRT36-26A, CRT48-33K, CRT48-34V, CRT48-35L, CRT48-35V, CRT48-37V, CRT48-57K, and their Power Steer and EU variants, covering both standard and specialty configurations. When hardware integrity matters on a rotating finishing machine, using the correct OEM clip nut keeps critical assemblies properly secured across the full service life of the equipment.

Key Features

• Phosphate-Coated Corrosion Resistance — The phosphate finish provides a protective layer that resists surface oxidation, keeping the fastener functional in wet concrete finishing environments.
• M6 Clip-Style Locking Design — The clip nut profile locks positively onto mating hardware, resisting vibration-induced loosening during trowel operation without additional tooling.
• Genuine OEM Part — Manufactured to Wacker Neuson's original specification, ensuring correct thread engagement, material grade, and coating for the application.
• Broad CRT and RD Series Coverage — Confirmed fitment across CRT36 and CRT48 ride-on trowel families, plus the RD7H-ES tandem roller, making this a widely applicable stock item for multi-machine fleets.
• Maintains Fastener Integrity Under Load — A worn or missing lock nut on a ride-on trowel can allow panels, guards, or mechanical assemblies to shift under the vibration and rotational forces of finishing work, creating both performance and safety concerns.

A lock nut is a fastener engineered to resist loosening under vibration, dynamic load, and repeated mechanical stress. The M6 clip style used in this application clips over a mating stud or bolt and relies on its locking geometry to maintain clamping force without backing off during machine operation. On ride-on concrete trowels like the CRT36 and CRT48 series, rotating rotor assemblies and engine-driven systems generate sustained vibration that can gradually work standard nuts loose — a correctly rated lock nut prevents that movement. When a lock nut fails or is missing entirely, the secured assembly can shift, rattle, or detach, leading to accelerated wear on adjacent components or loss of control over a critical machine system.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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