PS: Foreign bolts with 8.8 on the head are NOT grade 8 bolts and should be left in the bin.
X2.
Many foreign bolt manufactuers use metric grading scales which have a different set of formulas for determining strength and a foreign graded 8.8 is not an equivilent to a SAE grade 8. A foreign grade 12.9 may be bit closer to an SAE grade 8.
Agreed on SST types as well. 303, 304, 313, 316, 18-8, there are lots of different stainless grades.
