Riser Clamp, Clamp Material Steel, Clamp Material Finish Electrogalvanized, For Maximum Outside Diameter 1 7/8 in, For Pipe Size 1 1/2 in, Load Capacity 255 lb, Mounting Hole Diameter 0.438 in, Overall Height 1 in, Overall Length 9.88 in, Overall Width 1 in, For Use On Tube, Standards MSS SP-58, Type 8