Hello, Our Lat. II t/p holder are made out of zinc therefore, the item will rust. Thanks!
Yes, a double roll toilet paper can fit on the Latitude II Euro TP Holder.
You can contact Gatco and they will send you a few set screws for free.
Howdy dakota, Here are the assembly instructions: http://www.homedepot.com/catalog/pdfImages/a4/a4268705-b5e9-4ef8-b055-0e5039cd36a0.pdf happy assembling, Coach Dave