I was grabbing some rivets yesterday, and the owner informed me that they were moving their warehouse all the way to Pukekohe at the end of the month.
He assured me that they would be able to take orders over the phone, and that you can look up their stock on their website.
So, if you want to stock up on rivets etc, get to 81 Hillside Road, Glenfield, before the end of the month.