Ohio Bill, the bolt on most steps, Stromberg steps, sold by lippert, is one bolt at top under coach. This bolt hold the gear drive for the steps in and our function. If this bolt shears or like mine, falls out, then the steps just swing in and out and can cause you to fall. This bolt goes thru a cover plate, the gear drive plate and then screws into the top of housing.
Logic will carry you from point A to point B. Imagination will carry you everywhere. "Albert Einstein". 2011 Georgetown 360, Bride of 45yrs, and 2014 Chev Equinox toad, what more could you ask for.