Are banjo bolts grade 8?

I always try to make sure The washers are the same exact diameter as banjo bolt....some are a little larger and I have had them leak on me..... Also if you happerned to put a new caliper or line on make sure there is no inperfections in the castions where the fluid can seap out........ Other than that..... No there are no grade 8 bolts that I am aware of and they will take allot of torque to keep from leaking