The Wacker Neuson Jam Nut Coarse Thread is a genuine OEM fastener designed for HP, HPG, HC, SC, and SP series vibratory truss screeds. As a direct Wacker Neuson OEM part, is manufactured to the exact thread specification required for proper locknut function across these screed assemblies. Compatible models include the HPG100A, HPG50A, HP100A, HP50A, HC25, HC50, HC100, SC25, SC50, SC75, SP50, and SP75 — covering both power sections and center sections throughout the lineup. When you need a straight swap with no guesswork on thread pitch, this is the correct part.
Key Features
- Genuine OEM Thread Integrity — Manufactured to the exact coarse thread specification, ensuring full thread engagement and correct locking torque for screed assembly fastening.
- Direct Drop-In Replacement — Matches the original jam nut profile, threading directly onto existing fastener hardware in the screed frame without rework or modification.
- Broad Screed Family Coverage — Fits HP, HPG, HC, SC, and SP series vibratory truss screeds, including power sections and center sections across multiple model variants.
- Secure Locking Under Vibration — A properly installed jam nut maintains positional lock on threaded connections even under the continuous vibration loads generated during screed operation — a worn or missing jam nut allows fastener creep and misalignment.
- Verified Part Number — Order with confidence using Wacker Neuson part number 5000116449 to confirm you are receiving the correct coarse-thread specification for your screed model.
A jam nut is a thin secondary nut threaded against a primary nut or fastener to create a locking pair — it prevents the primary fastener from backing off under load or vibration. On vibratory truss screeds, where the entire assembly is subject to sustained high-frequency vibration during concrete finishing, jam nuts play a critical role in keeping structural and adjustable connections tight and correctly positioned. A missing or damaged jam nut allows the primary fastener to gradually loosen, leading to play in the screed frame, inconsistent strike-off height, and accelerated wear on surrounding hardware.
Part Details
| Part Number | 5000116449 |
|---|---|
| Old Part Number | 0116449 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Jam Nut Coarse Thread |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HPG100A | HPG100A | 5000009507 |
| HP50A | HP50A | 5000009508 |
| Vibratory Truss Screed, Power Section | HP100A | 5000009506 |
| HPG50A | HPG50A | 5000009509 |
| HC25 | HC25 | 5000130376, 5000115710 |
| HC50 | HC50 | 5000130377, 5000115709 |
| HC100 | HC100 | 5000130378, 5000115708 |
| Vibratory Truss Screed, Power Section | HP100 | 5000008291 |
| Vibratory Truss Screed, Power Section | HP50 | 5000008292 |
| Vibratory Truss Screed, Power Section | HPG100 | 5000008293 |
| Vibratory Truss Screed, Power Section | HPG50 | 5000008294 |
| Vibratory Truss Screed, Power Section | SP75 | 5000008295 |
| Vibratory Truss Screed, Power Section | SP50 | 5000008296 |
| SC 75_0115717 Section | SC75 | 5000115717 |
| SC 50_0115718 Section | SC50 | 5000115718 |
| Vibratory Truss Screed,Center Section | SC25 | 5000115719 |
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.
