Fastening system and elements using this system

A system for fastening two constituent elements of an electrical connection assembly of the tenon and mortise type, which comprises:

• male fastening means which comprise, projecting from a fastening face:
• at least one tenon of longitudinal axis X-X′ and provided with a free end called the engagement end,
• a locking rib located at a distance from the tenon, away from the engagement end and oriented transversely to the axis X-X′,
• female fastening means, complementary to the male fastening means, which comprise in a fastening face:
• at least one mortise intended to accommodate the tenon,
• a cavity called an engagement cavity in which the mortise opens out at an engagement face and which has dimensions large enough to allow the tenon to be inserted into the mortise,
• a locking end stop intended to cooperate with the locking rib when the tenon is completely engaged in the mortise in order to provide an obstacle to relative sliding between the tenon and the mortise.