Fred, unfortunately many pay no attention to what section a thread is located. And many have never owned a popup or A-frame trailer and know nothing about how different they are, compared to other types of RVs.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity