Aluminum Beam Clamps Sturdy clamp made from structural aluminum in 3 sizes, 1/4" - 3/8" - 1/2". They are used for hanging rod in the plumbing, electrical, and ventilation trades.
Window Beam Clamp 3 1/2" x 3 1/2"
Zinc plated steel
For attaching 1 5/8" x 1 5/8" strut channel to I-beams
Strut channel fits through the window in the clamp
