RE: Handy thread chart
I trimmed that chart down to what we actually need. I use mine often, I nailed it to the wall in my shop. Oddy was asking about threads on a crank shaft. I told him to get a thread pitch gauge and a digital caliper. Using this chart and those tools one can figure out the thread pitch and size of most anything we run into. He apparently did not do that and has since ruined his prop hub.