Description
Overview:
This Nut Blade is a genuine Husqvarna OEM fastener for securing metal cutting blades on compatible brushcutters. Made from durable steel with a corrosion‐resistant finish, it provides a strong, reliable clamp on the blade and hub to keep the assembly stable under vibration. Designed for Husqvarna professional and homeowner brushcutters such as the 143RII and 236R, it is a direct replacement that restores correct fit and safety when the original nut is worn, damaged, or missing. The hexagonal form allows straightforward tightening with a standard spanner, and the precision threads help protect the output shaft and blade carrier. OEM reference 579 07 64‐01 (MPN 579076401) confirms correct compatibility and performance for the specified machines.
Key Features:
- Genuine Husqvarna OEM part for assured fit and reliability
- Precision-machined steel nut for secure blade retention
- Corrosion-resistant finish to withstand outdoor use and wet conditions
- Helps prevent loosening under vibration during heavy cutting
- Smooth, accurate threads to minimise wear on shaft and blade hub
- Hex profile for easy installation and removal with a standard spanner
- Direct replacement using the original blade clamping arrangement
- Suitable for metal grass/brush blades used on compatible models
- Supports safe operation when fitted and tightened as per the manual
- Identified by OEM No. 579 07 64‐01 / MPN 579076401
Typical Applications:
Securing metal grass and brush blades on Husqvarna brushcutters during blade changes, sharpening cycles, or routine servicing. Ideal for restoring safe, reliable clamping when tackling dense grass, brambles, and undergrowth on estates, gardens, farms, and site clearance jobs.
Also known as:
Blade retaining nut, brushcutter blade nut, blade fixing nut, cutter head nut, retaining fastener, blade clamp nut, brush knife nut, trimmer blade nut.
Fits Models:
143RII, 143RS, 143RST, 236R, 531RS, 541RS, 541RST, 543RB
Alternate Part Numbers:
579 07 64-01, 579076401
