Better late than never. Here is a picture of how I pinned the OMC prop. There are three stainless, heavy duty pins. The hub is stepped and is a larger diameter at the shear pin end, than the trailing end. There is substantial meat in the hub at this point, to hold the pins from twisting out. Sorry, I should have taken a picture of the hub, when I had it out for examination.
Long live American manufacturing!
