Abstract: A method of flow drilling a metal sheet includes flow drilling the metal sheet to produce a tubular extension from a surface of the metal sheet. The flow drilling is performed by forming two parts in the tubular extension, including an external part defining a hole of constant diameter and a seating part between the metal sheet and the external part. A cross-sectional shape of the seating part is hexagonal.

Abstract: A metal sheet includes a surface and a tubular extension projecting from the surface of the sheet. The tubular extension includes a first part and a second part that define a through-hole. The second part extends from the surface to the first part. A cross-sectional shape of the second part is hexagonal. A diameter of the hole in the first part is constant. A diameter of a circle inscribed in the second part increases from the first part to the surface. A screw can be screwed into the first part.

Abstract: The invention concerns a flow drilling and tapping method for assembling thin metal sheets. A tubular extension (12) produced on said metal sheet comprises a conical mount (18) at said metal sheet (10). Through said mount (18), advantageously provided with a hexagonal base (24), the loads are transmitted along the tubular extension (12), and it is possible to fix a perforated element (1) on a metal sheet (10) having a thickness less than 1.5 mm and to apply a standard tightening torque.

Abstract: A system to couple a plastic part and a body structure includes a plate and an elastic member as part of the body structure. Additionally, the plastic part includes an opening and an oblique stop at an end of the opening. The plate is received within the opening. The elastic member includes a first end that is free and a second end that is fixed to the plate. The elastic member biases the plate with respect to the plastic part. In a first position, the first end of the elastic member contacts the oblique stop. In a second position, the first end of the elastic member contacts the oblique stop such that the first end of the elastic member is displaced in a vertical direction and a horizontal direction compared to the first position. Additionally, the elastic member is slideable along the oblique stop.

Abstract: A system for attaching a hinge on a door leaf of an automobile includes at least two riveted self-punched connections that clamp the hinge and the door leaf.

Abstract: The invention concerns a flow drilling and tapping method for assembling thin metal sheets. A tubular extension (12) produced on said metal sheet comprises a conical mount (18) at said metal sheet (10). Through said mount (18), advantageously provided with a hexagonal base (24), the loads are transmitted along the tubular extension (12), and it is possible to fix a perforated element (1) on a metal sheet (10) having a thickness less than 1.5 mm and to apply a standard tightening torque.

Abstract: The invention concerns a device for fixing a plastic part (4) on a body shell structure, comprising a plate (1), mobile in an opening provided in the plastic part and elastic means (2) for returning, along the longitudinal axis, the plate (1) into the opening. The invention is characterized in that the slot (3) provided in the plastic part comprises at least on one of its sides, a slanting stop (5) which co-operates with the elastic means (2).