The panhead is for a counter sunk rotor the older ones was tapered head

 

I could have sworn I looked up the right thing but apparently not.
I have a front wheel on the table in my garage so I went to make sure and I was completely wrong.
The rotor bolt for it is a 5/16-18.
I'm damn near positive the rotor bolts are the same front and rear.

 

I am going to pull the rotor off go to hardware store that way I can match them up

 

Front brake rotor bolts are 5/16-18 x 7/8 Torx pan head. Rear is 3/8-16 x 1" Torx pan head.

 

I got them out they are 3/8 x16 x1" they have a Allen head