Whoever thought nuts with the bolt as part of it was a good idea for the rear wheels probably never had to fix a roadside flat.
That said, since I've not even taken my project car around the block yet, I've yet to experience that thrill and would be happy if the event were indefinitely postponed. I have heard some machinist friends say to replace fasteners when restoring an older car, due to metal fatigue over the decades and especially ones that bear a load, such as the rear lug bolts.
Has anyone replaced theirs and if so, do you recall where you got 'em? I like to torque mine to 90 lb/ft and would hate to shear one off. Thanks!