rivnuts for rear cargo floor area

[ohiohmmwv]

I looked up the rivnuts for the rear water and gas trays in the rear. As per the TM rivnut part number als-1024-225 has a grip range of .130 to .225
Is the rear floor actually that thick? I measured a piece of fender I cut out(just installed m1151 style ac vents) and it measured .083 in thickness. I tested a rivnut in the scrap piece and it squashed all unevenly and threads are crooked. Not a good match. Just thought I'd check with everyone here before I put the wrong rivnut through the rear floor and have to drill it out.

 

[Action]

I would assume the rivnuts are supposed to go through the reinforcement material under the bed.

 

[ohiohmmwv]

You must be right. Different part number listed for the fuel access cover rivnuts but same specs and they go through the cross beam underneath if I remember correctly.