These have been kicking around my inventory for about 30 years and I think it's safe to say I will never need them. They're just too cool to ignore, so hopefully somebody can give them a home. I don't know their brand, alloy, or history.

The two stainless bolts are completely non-magnetic with a neodymium N52 test, but note that the included split ring lock washers are just mild steel and NOT stainless.

Hopefully the photos will give enough information about their size and other specifics. The pair is almost 2 lb.