I used the large aluminum washers at the bolt head and at the distal end with the nut. In my case, that fasteners are hex nuts with the head in the box and bolt through the platform. No reason you couldn't do it the other way 'round, but you would then have the nut and bolt excess in the box taking up space and perhaps damaging whatever you put in the box.Barrett252 said:Do the carriage bolts come up through from underneath the platform with the washer below the platform or does the carriage bolt go down and then you put the big washer on and nut underneath? I think it would be weird to see the 8 bolts sticking up through the inside storage box