On 3 Jul 2021, at 20:56, Tony Thompson <tony@...> wrote:



Brian Carlson wrote:

Paul. If it was a boxcar yes. Being a flat I didn’t think I could get enough thread engagement. Not much to these cars.

Brian, as an engineer, I’m sure you know that most of the work of a thread is in the first turn or two. Of course there can be a loosening problem with so few turns, but for load-bearing, not really.

Tony Thompson
tony@...