Wacker Neuson 5100050643 Knurled Head Screw

The Wacker Neuson Knurled Head Screw is a genuine OEM knurled head screw designed for the RD24-100, RD27-120, RD40-130, and RD45-140 series tandem rollers. As a direct OEM replacement, this part is sourced from Wacker Neuson to match the exact specifications of the original hardware. Compatibility extends across a wide range of RD-series variants including C, O, DPF, and electric-series models, covering both standard and US-market configurations. Ordering by part number ensures you receive the correct fastener for your machine without guesswork.

Key Features

• Genuine OEM Fastener Integrity — Manufactured to the same thread form, knurl geometry, and material grade as the original screw, ensuring consistent clamp load and a secure, rattle-free fit.
• Tool-Free Hand Installation — The knurled head profile is designed for finger-tightening in applications where quick access and tool-free adjustment are required, matching the original installation method exactly.
• Broad RD-Series Compatibility — Fits RD24-100, RD27-120, RD40-130, and RD45-140 tandem rollers across standard, C, O, DPF, and electric (e-series) variants in both domestic and US-market configurations.
• Maintains Correct Panel and Cover Retention — A properly functioning knurled head screw keeps access panels, covers, and guards seated correctly, preventing vibration-related loosening during compaction operations.
• Verified Part Number Fit — Part number 5100050643 maps directly to the original Wacker Neuson assembly diagrams for all listed RD-series models, giving you confidence before you order.

A knurled head screw is a manually operated fastener with a ridged or textured outer surface on the head, allowing it to be tightened and loosened by hand without the need for a separate tool. On Wacker Neuson tandem rollers, these screws are typically used to secure access panels, guards, or adjustment covers that require routine opening during operation or servicing. When a knurled head screw becomes worn, stripped, or lost, panels can shift or vibrate loose under the high-frequency compaction forces these machines generate, potentially exposing internal components to dust and debris. Replacing a damaged or missing screw promptly keeps enclosures properly seated and service access straightforward.

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.