Appleton Beam Clamp, Series: BH Series, 5/16-18 Rod, 0.94 in Flange Thickness, 525 lb Load, For Use With: Conduit Hanging System, Specifications: 0.94 in Jaw Opening, Malleable Iron, Hot Dipped Galvanized Finish, 1.81 in L x 1.5 in W Dimensions, Appleton Beam Clamp ADDITIONAL DETAILS