Spare wheel carrier bolts

Got a defender 90 recently that came with the, I think, original spare wheel carrier. However, it's detached from the car and there are no bolts. It is NOT a swing out one. It looks like it's help in by 6 bolts. Does anyone know where I can buy these? Or have a part number for them?

Any help would be hugely appreciated

B&q

But what size? Is it a standard Land Rover carrier?

pics?

Here is a photo of the carrier: