The Husqvarna 503226504 Square Nut is a genuine OEM fastener designed for a wide range of Husqvarna power cutters, including the K770, K970, K760, K750, K950, K1270, and many more models in the K-series lineup. As an authentic Husqvarna replacement, this Square Nut is manufactured to the exact dimensions and material specifications of the original, ensuring a secure, rattle-free connection every time. DHS Equipment supplies this part to help keep your power cutter running at full capability. Cross-reference part number 503226504 against your machine's parts diagram to confirm fitment before ordering.
Key Features
- Genuine OEM Dimensional Accuracy — manufactured to Husqvarna's exact thread pitch, width across flats, and material hardness spec, so the nut seats and torques correctly without stripping or backing out.
- Drop-In Replacement — matches the original square-profile geometry for direct installation into existing channels, brackets, and clamping points with no rework required.
- Broad K-Series Compatibility — fits a wide range of Husqvarna power cutters including the K770, K970, K760, K760II, K750, K950, K1270, K1250, K1 PACE, K650, K700, K540i, and additional K-series models.
- Structural Integrity Restored — a worn, stripped, or missing square nut compromises the clamping force holding key assemblies together; replacing it with the correct OEM part restores proper tension and alignment.
- Corrosion-Resistant Construction — built to withstand the wet-cutting environments and vibration levels typical of demanding power cutter applications, maintaining holding strength over extended use.
A square nut is a four-sided fastener used where a standard hex nut would spin or fail to seat — typically captured in a slot or channel so it cannot rotate while a bolt is tightened. On Husqvarna power cutters, square nuts appear at structural connection points where secure, vibration-resistant clamping is critical. When a square nut becomes stripped, corroded, or lost, the assembly it secures can loosen under the significant vibration load these machines generate, potentially affecting blade guard alignment, handle stability, or other key components. Replacing it with the correct OEM part, 503226504, restores the designed clamping force and keeps the affected assembly properly secured.
Part Details
| Part Number | 503226504 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Square Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K2500 |
| Power Cutter | K40 |
| Power Cutter | K4000 |
| Power Cutter | K760 |
| Power Cutter | K760II |
| Power Cutter | K770 |
| Power Cutter | K950 |
| Power Cutter | K970 |
| Power Cutter | K1PACE |
| Power Cutter | K1270 |
| Power Cutter | K650 |
| Power Cutter | K1250 |
| Power Cutter | K3000VAC |
| Power Cutter | K700 |
| Power Cutter | K750 |
| Power Cutter | K960 |
| Power Cutter | KV03 |
| Power Cutter | KV03MKII |
| Power Cutter | K3000 |
| Power Cutter | K540i |
| Power Cutter | K950Rescue |
| Power Cutter | K650CutnBreak |
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.
