Bayonet mating is used where a quick mating and unmating action
is desired, and accidental disconnection by pulling on the cable
must be prevented.
The plug coupling nut is pushed forward with the slots engaging
the studs on the jack, rotated, and released. When the coupling
nut is released, an internal spring pulls it backward to locate
the studs in the circular relief at the bottom of the slots, preventing
Most bayonet-mating types have two studs. For applications that
require anti-rock characteristics, many types are alternately available
with three- or four-stud interfaces.