We have a picture there in the Tech Manual of a hard top latch (end of section). When I first assembled it this way, the herd top resulted sitting good half centimeter too high and the metal pieces that are holding it were bent by nut squeezing them.
The nut should go through the washer to the shelf that goes around the back of the top, then the metal piece, then rubber washer, then the plastic pieces locked by the pin.