The Wacker Neuson Allen Screw M8 X 30 is a genuine OEM fastener designed for the RD7H, RD7Heh, RD7Hehf, and RD7Hehfb series double drum vibratory rollers. Sourced directly from Wacker Neuson, this fastener meets the exact material grade, thread pitch, and dimensional tolerances specified for these machines. It is a direct, verified replacement for the original hardware used across the full RD7H roller lineup, including the RD7H-ES, RD7H-S, and electro-hybrid variants. When you need confidence in a critical fastener, the genuine OEM part is the straightforward choice.
Key Features
- Correct Thread Engagement: — M8 x 30mm spec ensures full thread engagement and proper torque retention in the original threaded bores — no guesswork on sizing.
- Genuine OEM Material Grade: — Manufactured to Wacker Neuson's specified tensile strength and hardness rating for this fastener position, so it holds under the vibration loads inherent to compaction equipment.
- Broad RD7H Series Coverage: — Fits RD7H, RD7H-ES, RD7H-S, RD7Heh, RD7Hehf, and RD7Hehfb tandem roller models, covering both standard and electro-hybrid variants.
- Drop-In Allen Drive Fit: — Hex socket head installs with a standard Allen key, matching the original drive style and seating depth for straightforward service access.
- Vibration Resistance: — A correctly spec'd fastener prevents loosening under continuous drum vibration; an undersized or incorrect-grade substitute risks joint failure and structural movement.
An Allen screw — also called a hex socket cap screw — is a threaded fastener driven by a hexagonal Allen key inserted into the socket head. On double drum vibratory rollers like the RD7H series, these screws secure key assemblies and panels that are subjected to constant vibration during compaction work. Over time, fasteners can stretch, strip, or corrode, leading to loose components, misalignment, or structural issues that affect machine integrity and compaction performance. Replacing a worn or damaged Allen screw with the correct OEM specification part restores the clamping force and fit the assembly was engineered around.
Part Details
| Part Number | 5000202439 |
|---|---|
| Old Part Number | 0202439 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Allen Screw M8 X 30 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| RD 7S | RD7H-S EU | 5000620795 |
| Double Drum Vibratory Roller | RD7H | 5000008042 |
| RD7Heh | RD7Heh | 5100006334 |
| RD7Hehf | RD7Hehf | 5100006339 |
| RD7Hehfb | RD7Hehfb | 5100006344 |
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.
