Connecting rod nuts

I'd like to know who their supplier was. I know that Chrysler did not make their own hardware.
I've rebuilt several engines over the years, have never replaced the rod bolts in any, never had an issue. But every engine I have been into has been run of the mill daily driver to this point.
On my current build my engine came to me as an incomplete basket case. I didn't get pistons or rods with it. I lucked into a set of NOS rods still in mopar boxes. I certainly ain't worried about replacing those rod bolts.