I ordered a set of the bolts from LMC and a set of bolts from Summit. Neither are an exact match. The ones from LMC have the same diameter and length knurl, but there is no smooth section between the knurl and the threads like the ones on my truck. The ones from Summit have the same diameter knurl, but the knurled section is not as long. I think that both bolts will work. I installe3d the LMC bolts and I'm back on the road. The lug nuts that I got from Napa are the same 1/2" thread and 13/16" wrench size, but they are thicker than the stock bolts, they also have a bevel on one side. They work, but I'd like to find some nuts that match the stock ones. I tried looking through a Dorman catalog at Napa, but did not find any. So, the search continues. I'm super happy to have the truck back on the road.
Thanks,
Chris