The Multiquip 500600 Castle Nut 1" is a genuine OEM fastener designed for CMS-44S, CMS-4S, and MC-42S concrete mixers. Sourced directly from Multiquip, this castle nut is an exact match to the original hardware used during factory assembly, ensuring a correct and secure fit without any guesswork. It is compatible across the Stow and Multiquip concrete mixer families that share this fastener specification, making it a dependable choice for maintenance and repair work.
Key Features
- Genuine OEM Hardware Grade — Manufactured to the same material and dimensional standard as the original fastener, ensuring the correct thread engagement and clamping force for this application.
- Direct-Fit Replacement — Matches the 1" castle nut specification used in the original assembly, dropping into place without modification to mating components.
- Confirmed Fitment — Verified for CMS-44S, CMS-4S, and MC-42S concrete mixer models.
- Secure Locking Design — The castellated profile is designed to accept a cotter pin, locking the nut against rotation and preventing loosening under the vibration and load cycles typical of concrete mixer operation.
- Safety-Critical Retention — Castle nuts are used in fastening applications where accidental loosening could lead to component separation; using the correct OEM specification nut maintains the integrity of that connection.
A castle nut — named for its slotted, crown-like top — is a precision fastener used in applications where a rotating or load-bearing component must be secured against unintentional loosening. The slots in the nut align with a hole in the mating bolt or shaft, allowing a cotter pin to be inserted and bent into place, mechanically locking the nut. On concrete mixers, these fasteners are commonly found on drum, axle, and drive components where sustained vibration would otherwise work a standard nut loose over time. A missing, damaged, or incorrect castle nut can result in fastener failure and component separation, making correct replacement essential to safe mixer operation.
For fitment questions or help confirming this part is right for your machine, contact the DHS Equipment team before ordering.
Part Details
| Part Number | 500600 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Castle Nut 1" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Concrete Mixers | CMS-44S |
| Concrete Mixers | CMS-4S |
| Concrete Mixers | MC-42S |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
