The Multiquip 50158800 is a genuine OEM Allen Screw M4X20 1D81Z designed for RAMMAX walk-behind roller models including RW1404, RW1404MR, and RW1504HF. As an authorized Multiquip OEM part, 50158800 is manufactured to exact dimensional specifications, ensuring correct torque engagement and secure fastening in its designated assembly location. Verify your serial number range before ordering — the RW1404MR fitment applies to S/N 326075 and up, and the RW1504HF fitment covers units up to S/N. DHS Equipment stocks genuine Multiquip hardware so you can complete your repair without sourcing delays.
Key Features
- Genuine OEM Fastener Spec — Manufactured to Multiquip's exact M4x20 thread pitch and head geometry, ensuring correct clamping load in the assembly.
- Drop-In Hardware Replacement — Matches the original Allen drive profile and thread form, so no re-tapping or modification to the mounting point is needed.
- Confirmed Fitment for RAMMAX Rollers — Verified for RW1404, RW1404MR (S/N 326075 and up), and RW1504HF (up to S/N 1534188).
- Structural Integrity at the Fastener Level — A correctly specified fastener maintains proper component alignment and preload; an incorrect or worn screw can allow loosening under vibration, leading to component shift or failure.
- Serial Number Fitment Clarity — Serial number breakpoints are documented for both the RW1404MR and RW1504HF, so you can confirm the right part before your machine goes back to work.
An Allen screw — also called a socket head cap screw — is a threaded fastener driven by a hex key and used throughout compaction equipment to secure covers, brackets, housings, and mechanical assemblies. The M4x20 designation indicates a 4 mm thread diameter and 20 mm length, which determines its correct seating depth and clamping force. When a fastener of this type becomes stripped, corroded, or sheared, the component it secures can shift under the vibration loads that are inherent to roller operation, potentially causing misalignment or premature wear to surrounding parts. Replacing it with the correct OEM specification fastener restores the designed clamping load and keeps the assembly properly torqued.
For fitment questions or to confirm compatibility with your specific serial number, contact the DHS Equipment parts team.
Part Details
| Part Number | 50158800 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Allen Screw M4X20 1D81Z |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | RW1404MR S/N 326075 and up |
| Rollers | RW1504HF up to S/N 1534188 |
| Rollers | RW1404 |
| Rollers | RW1404MR |
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.
