The Manfrotto Lite-Tite Swivel Umbrella Adapter is a versatile aluminum bracket that will fit on almost any light stand. It includes two removable, reversible studs with 1/4"-20 and 3/8"-16 male threads on one and 1/4"-20 and 3/8"-16 female threads on the other for light stands with 5/8" threaded or unthreaded top studs. The male threaded stud is useful for mounting lights, shoe mounts, and more. The adapter has an umbrella receptacle and tilts and locks via a large ratcheting handle.
Manfrotto 026 Swivel Umbrella Adapter (Lite-Tite)
Reversible Male Stud (1/4"-20 & 3/8" screw thread)