The M119 adaptor is a 16 mm spigot with a 1/4" female threaded hole at one end and a 3/8'' female threaded hole at the other end.
This item is part of our 5/8” (16mm) range. All items with the 5/8” logo displayed have either a male stud or a female socket that is 5/8” (16mm) and this makes them compatible with other items within this range. Please note that male studs are only compatible with female sockets and vice versa.