Make sure you haven't got the discount earlier.
![Customer Service Representative](https://partselectcom-gtcdcddbene3cpes.z01.azurefd.net/images/csr-partdetail.jpg)
Nut 596583702
Fits your W21SK!
Fits your W21SK!
PartSelect Number PS16382139
Manufacturer Part Number 596583702
Manufactured by
Husqvarna
![Customer Service Representative](https://partselectcom-gtcdcddbene3cpes.z01.azurefd.net/images/csr-partdetail.jpg)