Yes to grade 8 bolts. Years ago one could be Federal alloy they were gr 12 they were wonderful took years to corrode. Sorry to be the nay sayer. But if you use never seize you should derate your torquing of the bolt by about 40%. Of years of use I found that never seize didn't last as long on bolts and threads.( Just as my girlfriend about her friend when we work with copper cote) she gets it on her garanteed ) It is a joke around here. I have found that Copper Cote is the best lasts the longest and it doesn't change the torque spects. For none structual things I use stainless steel.