This support rod clamp features die-cast metal construction with a tapped hole accommodating 10 x 1.5 threaded rods up to 12.5mm in diameter. The adjustable thumbscrew allows the clamp to securely fit table edges up to 2.5 inches thick. The clamp measures 6.25 inches in length and 4 inches in width. Suitable for securing rod-mounted laboratory apparatus to bench edges and table surfaces in classrooms and professional laboratories.