According to fastenals engineering torque spec guide both the ARP and the McMaster-CARR meet or exceed the minimum 125,000PSI tensil strength which meets under ASTM193.
It says in the guide that under lubrication conditions not to exceed a clamping torque of 79Ft/LB.s, under dry conditions to torque to 105FT/Lb.s.
So pretty much Mcmaster-CARR and ARP meet the 125,000LB minimum tensil strength.
According to ARP's instructions they sent mattro, if you are torquing to 85ft/lb.s that is 6 ft/lb.s exceeding the the ASTM guidlines for a bolt/stud of that tensil strength, lubricated.
Please read the fastenal PDF guide
http://www.fastenal.com/content/feds...20for%20B7.pdf
Quoted at the bottom of fastenals PDF guide it states very clearly.
"Under/over tightening of fasteners can result in costly equipment failure or personal injury."