You want bolts for the pump > bracket? Tried a 'fixings' stop? How about the stealership, if all else fails? I'm not sure if anyone has a spare set at the moment. SteveP is breaking a GLT, but I think those parts might have been claimed already.
According to Volvo the part in question has 'expired' and its the bolt for the power steering belt adjustment, the one with the adjuster bolt running through it.
Mine has erm - rusted beyond belief
Volvo 360 -- Small Car - BIG Ideas
E990 UBA Volvo 360GL - Vanised
D133 OBU Volvo 340GL - Died
F330 FWB Volvo 360GLT - She Runs
GJ53 GPF Volvo S60 - Daily