Attachment System and Nut For Solar Panel Racking System

An attachment system for a solar panel racking system, the solar panel racking system including a structure, the attachment system comprising:

• a rail;
• a nut;
• and
• a fastener;
• said rail including an arcuate channel and a retainer;
• said nut having an arcuate portion and a flange;
• and
• wherein upon said arcuate portion being received within said arcuate channel, said flange releasably engages said retainer to releasably engage said nut to said rail, said fastener securing said nut to said rail and thereby securing said rail to the structure.

A nut for use in securing a rail to a structure, the rail including a receiver to releasably receive said nut, the receiver having an arcuate channel and a retainer, said nut comprising:

• an arcuate portion sized and dimensioned to be receivable within the arcuate channel;
• and
• a flange for releasable engagement with the retainer;
• wherein upon receipt of said arcuate portion within the arcuate channel, said flange releasably engages the retainer to releasably engage said nut within the receiver.