350GTBoY

Hi Everyone, Appologies if this is posted in the wrong section! I own a 350GT and have just purchased a used set of 350Z Brembos. Unfortunately the bolts for the rear calipers are missing and it's my understanding that they are different to my original rear bolts. These seem hard to come by! Just wondering if anyone has any or could point me in the direction of some. All your help is very much appreciated. Cheers Paul