The Husqvarna 505631701 Nyloc Nut 5/16-18 is a genuine OEM fastener designed for the SoffCut2500 and SoffCut5000 early entry saws. As a direct Husqvarna OEM component, this nut is manufactured to the exact thread specification and hardness rating required for the application. Confirm part number 505631701 against your parts diagram to ensure you are ordering the correct fastener for your machine. DHS Equipment supplies this part to help keep your equipment running at full capability.
Key Features
- OEM Thread and Hardness Specification — Manufactured to Husqvarna's exact 5/16-18 thread profile and hardness grade, ensuring the nut seats and torques correctly without stripping or backing off under vibration.
- Nylon-Insert Locking Design — The integrated nylon collar grips the bolt thread and resists loosening caused by the high-frequency vibration inherent in early entry saw operation.
- Direct OEM Replacement — Engineered as a drop-in replacement that installs directly without modification, matching the original fastener geometry and seating depth for the assembly it secures.
- Confirmed Fitment for SoffCut Early Entry Saws — Validated for use on the SoffCut2500 and SoffCut5000 early entry saws; cross-reference 505631701 against your machine's parts diagram before ordering.
- Structural Integrity Under Load — A correctly torqued, specification-grade nut maintains clamping force on critical assemblies; a worn or incorrect fastener risks loosening mid-cut, compromising both the cut quality and operator safety.
A nyloc nut is a prevailing-torque fastener that uses an integrated nylon ring to resist vibration-induced loosening. In an early entry saw like the SoffCut2500 and SoffCut5000, components are subjected to continuous mechanical vibration during green-concrete cutting, making a self-locking fastener critical wherever it is specified. When a nyloc nut loses its locking effectiveness — through reuse, heat exposure, or thread damage — the assembly it secures can work loose, leading to misalignment, accelerated wear on surrounding components, or an unsafe operating condition. Replacing it with the correct OEM fastener restores the designed clamping integrity to the joint.
Part Details
| Part Number | 505631701 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Nyloc Nut 5/16-18 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Early Entry Saw | SoffCut2500 |
| Early Entry Saw | SoffCut5000 |
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.
