OEM OEM JZA80 Supra & JZZ30 Soarer Rear Tailshaft Nut.
These nuts secure the bolt onto the donut and diff / tailshaft.
Note: This product does not come in the OEM Toyota packaging, as Toyota doesn't sell this item usually individually. This is for a single nut.
Six of these are required in total.
Bolt for this nut can be found HERE
Washer for this nut can be found HERE