The Wacker Neuson Hex Nut is a genuine OEM fastener designed for the HSH700 and HSH650 hydronic surface heaters. Sourced directly from Wacker Neuson, this hex nut meets the exact dimensional and material specifications used in original production, ensuring a secure, rattle-free connection at every installation point. It is a direct, like-for-like replacement that installs without modification, making it a straightforward fix for worn or damaged hardware on your HSH unit. If you're servicing an HSH700 or HSH650 and need a confirmed OEM part, the is the correct replacement to keep your heater operating as intended.
Key Features
- Genuine OEM Fastener Integrity — Manufactured to the same hardness grade, thread pitch, and dimensional tolerances as the original production hardware, so clamping force and torque specs are fully maintained.
- Thread-Perfect Direct Replacement — Matches the original thread form and wrench size, threading straight into existing tapped bosses or mating hardware with no chasing or reworking required.
- Confirmed HSH Series Fitment — Verified for the HSH700 and HSH650 hydronic surface heaters, so you can order with confidence before the service call.
- Secure Clamping Under Heat-Cycle Stress — Hydronic heaters experience repeated thermal expansion and contraction; a correctly spec'd hex nut maintains clamp load through those cycles and prevents loosening of critical connections.
- Genuine Wacker Neuson Part — Backed by Wacker Neuson's OEM supply chain, ensuring the part number 5000176629 matches what the factory specifies for these machines.
A hex nut is a threaded fastener that secures two or more components together by tightening against a bolt, stud, or threaded rod. On a hydronic surface heater like the HSH700 and HSH650, hex nuts are used throughout the assembly — from plumbing connections and panel mounts to structural frame points — where consistent clamping force is essential for safe and leak-free operation. A stripped, corroded, or incorrect-spec nut can compromise joint integrity, lead to fluid leaks, or allow components to work loose under vibration and thermal cycling, so replacing worn fasteners with the correct OEM-spec part is important during any scheduled service.
Part Details
| Part Number | 5000176629 |
|---|---|
| Old Part Number | 0176629 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hex Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| HSH650 | HSH650 | 5000620991 |
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.
