71 Duster Caliper mounting bolts

Yes they also have a taper style washer on them seen in the last picture. I have some sets , They go with spindles that are here. If the offer is right I will sell 4.

I checked Fastenal. The cheapest shoulder bolt close to that size from Fastenal is around $20 a bolt. the bolts I have are used but in good shape. Fastenal does not sell these bolts with this thread 7/16 - 20