The Short Double-Female Round Spigot with 1/4"-20 and 3/8"-16 Threads from Impact is a handy accessory for use in Super Clamps, on threaded light stand studs, or as a replacement part for Impact's CA-108 Swivel Umbrella Adapter. The brass spigot measures 1.25" high and has both 1/4"-20 and 3/8"-16 female threads for diverse mounting options, such as joining two risers together.