Re: TCI Pan w/o bolts??
Ok bolt size is going to be M8 X 1.25 X 25MM long (stock bolts are 19 MM long) and you are going to need 16 of them total. Socket head screws in this size use a 6MM hex key. Cap screws will require a 13MM but a 1/2" which is 12.7 MM, is a better/tighter fit.
Also, be sure to run a use a LEGIT GASKET with this pan or else you run the risk of the two screws of either side of the pump bottoming out on the pump boss. This will result in a leak towards the front of the pan. Shaving off an 1/8" of these two bolts will cure this if it's a problem.