Description
Overview:
This lock nut is a Genuine Honda fastener designed for secure retention on high‐vibration garden and construction machinery. Made from durable steel with a corrosion‐resistant finish, it helps prevent components from working loose in service, supporting safe and reliable operation. The precise hex form allows straightforward tightening with a standard spanner. It is commonly used on Honda brushcutters, including the UMK 425 LE and UMK 435 UE, where a robust locking action is essential around rotating or frequently stressed parts. Genuine Part. Manufacturer Part Number: 80031-VJ5-003 (also written as 80031 VJ5 003 / 80031VJ5003).
Key Features:
- Genuine Honda part for assured compatibility and fit
- Precision threads and locking action to resist loosening under vibration
- Hardened steel with a corrosion‐resistant finish for long service life
- Clean hex profile for easy installation and removal with common hand tools
- Helps maintain correct torque on critical fixings and assemblies
- Direct replacement for worn or damaged nuts; no modifications required
- Suitable for routine maintenance and full rebuilds on Honda UMK series machines
- Supports stable operation of guards, blade fixtures, housings and brackets
Typical Applications:
Used to secure components on Honda brushcutters where vibration is present, such as blade holders, gearhead covers, debris guard brackets, handlebar clamps and other assemblies. Ideal for restoring factory specifications during servicing, ensuring parts stay tight throughout cutting, trimming and general groundcare work.
Also known as:
Locking nut, self‐locking nut, hex lock nut, secure nut, retaining nut, vibration‐resistant nut, fastener nut.
Fits Models:
UMK 425 LE
UMK 435 UE
UMK425LE
UMK435UE
Product Specifications
| L&S Part No. | 80031 VJ5 003 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 80031VJ5003 |
| Unit of Sale | 1 |
| Applications | UMK 425 LE, UMK 435 UE, UMK425LE, UMK435UE |
| Fits Brands | Honda |
| Fits Models | UMK 435 UE | UMK 425 LE |
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