Washing machine appliance spacer assembly

A washing machine appliance comprising:

• a cabinet having a rear panel;
• a wash tub located within the cabinet;
• and
• a shipping spacer assembly removably attached to the wash tub for fixing a distance between the wash tub and the cabinet in an installed position, the shipping spacer assembly defining an axial direction, a radial direction and a circumferential direction, the shipping spacer assembly comprising:
• a bolt comprising a shaft extending along the axial direction and a head located at one end of the shaft, the bolt defining a plurality of lock-receiving features along the shaft,
• a spacer defining a bolt cavity extending along the axial direction and removably receiving the shaft, and
• a locking mechanism removably engaging the bolt at one of the plurality lock-receiving features to secure the spacer to the bolt.