Thanks I found the hardware I needed at a local nut and bolt place.For future reference, if you want a GM bolt that size (M12x1.75x50mm) for that application, you can use 11509774, or 11505210, superseded to 15676472. They list for about 9 bucks each from GM. Go get a discount from your local dealer and save some $$.
I'm assuming you meant #47 in the parts diagram below which holds the hub on, 6 per car.
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