The Wacker Neuson Screw M12x30 DIN6921-A 8.8 A2K is a genuine OEM fastener designed for PT6Y and PT6YT series pumps, as well as the ZEN-C 20 single direction plates. As a direct OEM part sourced through authorized Wacker Neuson supply channels, the is manufactured to the exact DIN6921-A standard and grade 8.8 tensile specification called for in the original assembly. Verified fitment spans multiple PT6Y variants including the PT6Y EPA T4 and PT6Y-AU, giving you confidence that this is the correct screw for your machine.
Key Features
- DIN6921-A Grade 8.8 Tensile Strength — Manufactured to the same hex flange screw standard specified in the original Wacker Neuson assembly, ensuring correct clamping force and thread engagement.
- A2K Corrosion-Resistant Finish — The A2K coating provides a protective surface treatment suited to the demanding, moisture-exposed environments that pump and compaction equipment operates in.
- Direct OEM Replacement — Matches the original M12x30 dimensions exactly, dropping into the factory-drilled mounting positions without any reworking of mating components.
- Broad PT6Y Series Coverage — Confirmed fitment across PT6Y, PT6YT, PT6Y-AU, PT6YT-IN, PT6Y EPA T4, and ZEN-C 20 single direction plates, covering a wide range of Wacker Neuson pump and compaction models.
- Structural Integrity at Critical Joints — A properly torqued, grade-correct fastener maintains housing alignment and prevents joint movement that can lead to leaks, vibration damage, or component failure under load.
A hex flange screw like the 5100066111 serves as a critical structural fastener, clamping together housings, covers, or mounting brackets at joints that are subject to vibration and mechanical stress during operation. The DIN6921-A flange head distributes clamping load across a wider bearing surface than a standard hex bolt, reducing the risk of fastener loosening under repeated vibration cycles. When this type of screw is stripped, corroded, or missing, the joint it secures can shift or loosen, compromising the integrity of the assembly and potentially causing misalignment, leaks, or accelerated wear on adjacent components.
Part Details
| Part Number | 5100066111 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Screw M12x30 DIN6921-A 8.8 A2K |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT6Y | PT6Y-SA | 5100070835 |
| PT6YT | PT6YT | 5100070966 |
| PUMP PT6Y-AU | PT6Y-AU | 5100076956 |
| PT6YT | PT6YT-IN | 5100077923 |
| PT6Y | PT6Y | 5100064168, 5100069617 |
| Single Direction Plates | ZEN-C 20 | 5100073053 |
| PT6Y | PT6Y EPA T4 | 5100073464 |
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.
Wacker Neuson