B-Line Beam Clamp, U-Bolt, Series: B760-22, 13/16 to 1-5/8 in Channel, 1 in Flange Thickness, 4 to 5-7/8 in Flange Width, Right Angle Under Flange Channel Position, For Use With: Strut and BF Fittings, Carbon Steel, Zinc Plated, 3-1/8 in W Dimensions