Thanks, i was having trouble resizing the pics. They wont crush. 16 layers thick carbon fiber (overbuilt once again). I think some nice washers under the bolts will work well. I recommend using an ultra grey adhesive will work best that way you dont have to crush a gasket.
Reason i say that is you dont want to over torque the soft threads on the cylinder and also dont want to damage the clear coating on the part.