Make sure that you torque them properly with a torque wrench when you put them together... That way they won't come loose on you...
Yep, flex plate to crankshaft bolts are 7/16-20 and get torqued to 55 foot pounds...
The torque converter to flex plate bolts are 5/16-24 and get torqued to 270 inch pounds....
I just looked it up in my service manual....