C-Purlin Clip Flange Thickness 1/16 in to 1/4 in Load Capacity 160 lb Steel Finish Corrosion Resistant Coated Gray Overall Height 3 1/2 in For Use With Bolting Straps Rod S-Hooks Wire Mounting Hole Diameter 0.25 in Mounting Location Surface Series VF cULus Conduit and Cable Hangers