The 28mm Steel Spigot with M12 Thread and Wing Nut and 4.7" Round Mounting Plate from Kupo is a 28mm, chrome-plated steel spigot for use with lighting yokes and stands. This spigot includes a 4.7" round mounting plate. It fits into a standard lighting stand or it can convert a 28mm receiver to an M12 thread with wing nut.