The 09CL4MX is a 4-contact locking DIN cable-mount Plug with ground key-rib. The DIN audio/video connector is made with nickel-plated die-cast zinc alloy metal body and tin-plated contacts. Unique 30° turn lock-ring securely fastens two halves of connector. Mates with lock flange female connector and receptacles. Insert screw holds insert assembly in shell and also retains lock-ring on shell. It features flexible black strain relief with 7/32-inch diameter cable entry and heavy duty clamp.