Generic YCUS150720-003 &lt;8&09971&gt; sembledion Cups Me Metal Stud Pack of 4 Medium 1-7/8" Brass Nut | USA Suction Cups Pre-Assembled Pack of 4 M High Quality, Made in the USA! Pack of 4 pre-assembled cup, stud and brass nut. The preferred hanger for screw-mountable signs, radar detectors, thermometers, bird feeders, and more. Brass, knurled nut. Assembled. Rated to hold 3 pounds. Diameter: 1 3/4" at rest / 1 7/8" in use Free & Fast Shipping(US Stock)