Abstract: A fibre optic coupling assembly includes a coupling assembly comprised of a spring loaded coupling lock which locks to fibre connectors together by way of spring balls located in locking grooves. The forward movement of the coupling locks, against the spring pressure of the spring, allows the disengagement of the two fibre connectors. The fibre connector has a connector housing with a crimp sleeve and an outer coupling nut. The coupling nut is threadably received over the rear end of the connector housing. The combination of the coupling nut and the crimp sleeve provides for strain relief of the fibre cable as well as pushes the fibre forward due to the radial contraction of the crimp sleeve, thereby gripping the outer insulation of the cable, and forcing the entire cable further forward upon further rotation of the coupling nut.