carrier was easily assembled - but what are the four long screws and bolts for?
1940260
You can use snaps to secure the carrier or use the 4 screws and nuts to make it very secure. I used the 4 screws and nuts.
1940261
They are to secure the four corners of the carrier. Through the square holes at the connection between the top and bottom halves of the carrier.
112090
the holes in side of rail for tie-downs but had to put washer to stablize had to rise the carrier so it didn't drag by welding 2inch receiver higher i used bolts for all holes
171587
There are only 4 bolts to attach the legs to the seat. Pay attention to the legs which are two legs in a U shape but there is a goes on first legs U. They are clearly marked and assembly is not difficult. Assemble carefully for that is needed to make your seat sturdy. Assembled properly it is very sturdy and great for me as an elderly man that has to set down to wash his feet.
1299205
Very easy to assemble. Only four screws need to be inserted and tightened and they include the necessary hardware to tighten the screws.
2107332
Well, it is put together with screws that require an Allen wrench. The table planks pop out very easily which would allow long items to pass through it in transport.
303110
It really is pretty simple. The only assembly is to drill holes to attach the buckles for the cover straps. This is a little frustrating, but not difficult. We rarely fasten the straps for the cover- only if there will be high winds.
1693448
Very simple assembly, back slips into seat and you have to screw the 4 legs on.
1585209
There are some bolts but it is easy to put together. They have made it so it is extremely sturdy so not all of the pieces just snap together.
184362
Only thing I can think of is the screws putting it together. There are obviously no other small parts
1914859
No, but it's super easy to put together. Put the front gate into the slot it goes it on the bottom half, then drop the top half on and screw on all the wingnuts onto the carrier. Done (:
316239
There are bolts included that I used with my standard metal bedframe. I attached very easily, and is secure.
877462
It is very easy to assemble and it comes with all the screws. It is a good buy. Nonissue got it installed without any difficulty. I am novice in these type of installations.
1914860
When delivered, this carrier is not assembled. You must assemble yourself, however it is quick and easy.
421995
Requires assembly . But Instructions are clear and all parts fit without modification.
23695
The sections aren't heavy. The first assembly was a bit confusing, after that an easy process. I use a locking bolt and installing that on the hitch takes longer than installing the rack. One note, I've only transported 2 bikes not 4.
2230036
1. It only requires very minimal assembly (attaching the 4 legs, each has two screws and the wrench to tighten them is provided). I also had to spend about an hour fixing some screws and brackets that ad come out in shipping - but then it was all very solid. 2. With the butterfly extension open, it very comfortably fits 6.
244502
The product page actually has an illustration showing how the knob connects to the bolt. The knob has the large part on top, with the bolt screwing into the lower (narrower) part. You can put a washer on the bolt (on the underside of the carrier's "lip") if you want it to be more secure.