Abstract: The device (5) according to the invention comprises a cylindrical body (50). The outer base of the body (50) has a crown piece with correction catches (501) engaging in a second crown piece of correction catches (30) of a connector (3). The number of correction positions between the body (50) and the connector (3) is equal to the number of catches (501, 30). An elastic washer permits a partial drawings back of device (5) to permit changing the correction position. According to a first mode of embodiment, the cylindrical body is extended by a threaded shaft and screwed onto the connector (3). According to a second mode of embodiment, a key system (54, 542, 543) acts on a latch (6) sliding inside connector (3), which permits locking onto a support (4). This key system is activated by a tool of the screwdriver type. The device can be used for coupling of complementary electrical connectors, notably for aeronautic applications.