The chords are 1-1/2" diameter x 1/8” wall thickness
Our White China Silk is a slip on that diffuses direct sources
These inserts can be swapped out with the standard window attachments
Comes with (2) 1-1/2" slider brackets used to clamp on to 1-1/2" Schedule 40 aluminum Speed-Rail®
it is by far the most versatile mount in the industry
XSF 12" x 18" Steel Fork End Hinges Style:Center Pivot The chords are 1-1/2" diameterBook End Hinges are available in bolt plate box truss sizes 10x10, 12x12, 12x18, 16x16, and 20. 5x20. 5" Center Pivot Hinges are available in bolt plate, aluminum fork end, or steel fork end box truss sizes 12x12, 12x18, 16x16, and 20. 5x20. 5 Custom hinges are available to match multiple sizes of truss. For example, a hinge block that connects 12x12 box truss to 20. 5x20. 5 box truss. Fabricated by AWS certified welders in the USA Powder Coating