Originally Posted by
Grouse45
Be safe my friend. It is all supplied in writing for you to read.I can no way make it any easier for you.
Obviously, even if i brought up 5 different charts from 5 different bolt companys with the same figures, somehow you would still believe that grade 2,5,8 are not hardened.. news flash! they all would say the same thing, since each grade is hardened accordingly..

Ray