4x6 Outdoor storage shed assembly video 

Did you ever get this issue resolved if so how ? I had the same issue

I just did that yesterday and had the same problem, so what I did is overlap the URL'S to the side panels .

Yes! The black pieces that attach to the URL’s and that the hinges attach to were the problem we found. The directions for this piece is unclear and you have to overlap it on TOP of the URL on the outside.

Not sure if you got that resolved. It seems that it fit the F1 screw. I just open the box and it is late. I will take a look in the morning. wish you luck.

It might be a metric. My measurement is OD ~ 13/32 inch, ID ~ 1/8 inch - it is made of plastic.