Minerallac® Flange Clamp, 1/2 to 3/4 in Conduit, 5/16 to 1/2 in Flange Width, Side Mounting, 25 lb Load, For Use With: 5/16 to 1/2 in Flange and 1/2 to 3/4 in EMT/Rigid Conduits, Specifications: Black, Spring Steel, Zinc Phosphate/Oil