Make sure you haven't got the discount earlier.
![Customer Service Representative](https://partselectcom-gtcdcddbene3cpes.z01.azurefd.net/images/csr-partdetail.jpg)
Hex Lock Nut 1/4-20 1900469001
Fits your 590-536-029!
Fits your 590-536-029!
PartSelect Number PS9912627
Manufacturer Part Number 1900469001
Manufactured by
MTD
![Customer Service Representative](https://partselectcom-gtcdcddbene3cpes.z01.azurefd.net/images/csr-partdetail.jpg)