Support Rail; Plain Shaft; 2" Shaft Diameter; 48" Shaft Length; 1.18" Rail Width; 1-3/4" Base to Center of Shaft; Aluminum; Predrilled; 8" Fixing Hole Center to Center; 17/32" Fixing Hole Size

Support Rail; Plain Shaft; 5/8" Shaft Diameter; 48" Shaft Length; 1-5/8" Rail Width; 1-1/8" Base to Center of Shaft; Aluminum; Predrilled; 4" Fixing Hole Center to Center; 0.193" Fixing Hole Size

Support Rail; Plain Shaft; 1" Shaft Diameter; 48" Shaft Length; 2-1/8" Rail Width; 1-3/4" Base to Center of Shaft; Aluminum; Predrilled; 6" Fixing Hole Center to Center; 9/32" Fixing Hole Size

Support Rail; Plain Shaft; 1-1/2" Shaft Diameter; 48" Shaft Length; 3" Rail Width; 2-1/2" Base to Center of Shaft; Aluminum; Predrilled; 8" Fixing Hole Center to Center; 11/32" Fixing Hole Size

Support Rail; Plain Shaft; 1/2" Shaft Diameter; 48" Shaft Length; 0.37" Rail Width; 9/16" Base to Center of Shaft; Steel; Predrilled; 4" Fixing Hole Center to Center; 0.169" Fixing Hole Size