Polyamide clamp with nickel plated brass and stainless steel hardware. Rail clamp for rod or flat bar. Mounts on flat bar up to 1/4 x 1 inch or rods up to 1/2 inch O.D. Versatile, corrosion resistant design easily adjusts and positions guide rails and sensor holders. The clamp can be opened enough to accommodate the rail while the fasteners remain engaged.