The Wacker Neuson Hexagonal Flange Head Screw is a genuine OEM component designed for the APT4S and APT4T pump series, including standard, surge brake, electric brake, and cold weather configurations. As a direct Wacker Neuson OEM part, is manufactured to the same specifications as the original hardware, ensuring a correct fit without guesswork. This screw is compatible across the full APT4S and APT4T lineup, covering both skid-mounted and trailer pump variants. Keeping the correct fastener in place protects the structural integrity of your pump assembly and prevents costly service issues down the line.
Key Features
- OEM Thread and Head Geometry: — Manufactured to exact hexagonal flange head dimensions, ensuring correct torque transfer and flange seating without fastener distortion or stripping.
- Direct Hardware Replacement: — Drops into the existing fastener position on APT4S and APT4T assemblies with no rework, re-tapping, or hardware modification needed.
- Broad APT Series Coverage: — Fits the APT4S Pump with Skid, APT4T Pump with Surge Brake, APT4T Pump with Electric Brake, and all Cold Weather variants of both models.
- Integrated Flange Design: — The built-in flange distributes clamping load across a wider bearing surface, reducing the risk of loosening under pump vibration and operational stress.
- Genuine Wacker Neuson OEM Quality: — Sourced directly through Wacker Neuson's authorized parts supply chain, so material grade and dimensional tolerances match what left the factory originally.
A hexagonal flange head screw combines a standard hex bolt with an integrated flanged washer base, allowing it to distribute clamping force evenly across the mating surface without a separate washer. On pump assemblies like the APT4S and APT4T, these fasteners secure key structural and mechanical connections that must remain tight under continuous vibration and load cycling. A worn, stripped, or incorrect replacement screw can cause joint loosening, misalignment, or component damage — making it important to replace like-for-like with the correct OEM specification part.
Part Details
| Part Number | 5200019862 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagonal Flange Head Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| APT4S Pump w/Skid | APT4S | 5200018977 |
| APT4T Pump, Surge Brake | APT4T | 5200019643, 5200019644 |
| APT4T Pump, Surge Brake, Cold Weather | APT4T CW | 5200019792, 5200019793 |
| APT4S Pump w/Skid, Cold Weather | APT4S CW | 5200019798 |
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.
