Picture does not represent actual hardware type or count. See detail below.

Fab 4x4 Main Room: Eight 1.5" screws, with serrated nuts

Fab 4x6 Main Room: Eight1.5" screws and four 1.0" screws, with serrated nuts

Fab 4x4 Add-on Room: Two 2.0" screws and six1.5" screws, with serrated nuts

Fab 4x6 Add-on Room: Two 2.0" screws, six 1.5" screws, and four 1.0" screws, all with serrated nuts

Fab System Rails: Twenty-four 2.0" screws, all with serrated nuts