Multiquip 50403500 Grub Screw M8X20 1D81Z

The Multiquip 50403500 is a genuine OEM Grub Screw M8X20 1D81Z designed for the MVH508DZ reversible plate compactor. Sourced directly through Multiquip's authorized parts network, this screw is manufactured to the exact material grade, thread pitch, and dimensional specification required by the MVH508DZ. As a genuine OEM component, it installs without any modification and maintains the integrity of the assembly it secures. Confirm your model code against the MVH508DZ before ordering to ensure a correct fitment match.

Key Features

• Genuine OEM Thread Integrity — Manufactured to the precise M8x20 thread specification, ensuring full thread engagement and proper torque retention within the assembly.
• Direct Drop-In Fitment — Engineered specifically for the MVH508DZ reversible plate compactor; installs into the existing threaded bore without re-tapping or rework.
• MVH508DZ Compatibility — Verified fitment for the Multiquip MVH508DZ heavy-duty reversible plate compactor series.
• Secure Clamping Performance — A correctly seated grub screw prevents component movement and shaft slippage that can lead to accelerated wear or assembly failure under vibration loads.
• Torque-Rated Material Grade — Produced to the OEM material specification for the 1D81Z designation, providing the hardness and shear resistance needed in a high-vibration compaction environment.

A grub screw — also known as a set screw — is a fully threaded fastener with no external head, designed to be driven flush or below the surface of a component to lock or position a mating part in place. In plate compactors like the MVH508DZ, grub screws are commonly used to secure rotating or sliding components against a shaft, preventing movement under the continuous vibration loads generated during compaction. When a grub screw loosens or fails, the component it retains can shift, causing misalignment, accelerated wear, or mechanical failure that takes the machine out of service.

For questions about this part or to confirm fitment for your specific machine, contact the DHS Equipment parts team directly.

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.

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.