A325 Bolt Shear Strength

[JRS45]

According to the ASTM, A325 bolts come in two minimum tensile strengths: 120 ksi for 1" diameter and below, and 105 ksi for anything over 1" diameter. Yet the steel construction manual Table 7-1 gives the same Fnv value regardless of bolt diameter. If I understand correctly, Fnv=0.45Fu (threads not excluded), so what am I missing?

 

[ajh1]

AISC opted to ignore the change in tensile strength. If you compare to CSA S16 you will see they took the change into consideration. I think that AISC's rationale was that most of the A325 bolts actually showed 120 ksi regardless of the original requirements so they simplified the process.
With the issuing of ASTM F3125 which inherently replaced ASTM A325, A490, F1852, and F2280, ALL A325 grade bolts are now 120 ksi min tensile.