National Hardware Pole Socket Set, Series: V105, 0.38 in Depth, 0.02 in Thickness, Steel, Brass, 400 lb Load Capacity, Suitable For Use With: Upto 1-3/8 in Diameter Pole, Includes: (1) Socket Pair Per Pack and Fasteners, 0.16 in Hole Diameter, For used to mount wood closet poles