If you are in need of a complete SkyBox mounting hardware set they are available here
SKU: 8890135
UPC: 736745901356
Manufactured from: 2004 to Present
We also have the Barrel Nut available 
here
here SKU: 8870083
UPC: 736745700836
Manufactured from: 2006 to Present
Seal Strip Sets are also available here 
SKU: 8870085
UPC: 736745700850
For additional information or questions you can contact us here, or by phone at 888-925-4621 M-F from 7 to 4 PT