Automotive door trim fastener and molding method

An automotive fastener for coupling a door trim panel to an interior door member, the automotive fastener comprising:

• a grommet including:
• a grommet head, a barrel extending from the grommet head, and a central aperture extending axially through both the grommet head and the barrel;
• at least one retention wing extending radially outwardly from the barrel and upwardly toward the grommet head;
• at least one barrel slot separating a distal end of the barrel into at least one pin retention pawl;
• wherein the pin retention pawl includes an inner retention tooth comprising a lead-in ramp surface facing toward the grommet head on an interior side of each pin retention pawl and a lead-out ramp surface distal of the lead-in ramp surface and facing away from the grommet head;
• a pin including:
• a pin head and a shaft extending axially from the pin head;
• wherein the shaft comprises a recess receiving the inner retention tooth, with a pin head facing surface positioned and designed to engage the lead-out surface and displace the pin retention pawl radially outwardly during removal of the shaft from the central aperture of the grommet, and a distal-facing outer surface positioned and designed to engage the lead-in surface and displace the pin retention pawl radially outwardly during insertion of the shaft into the central aperture of the grommet;
• and
• wherein the grommet comprises a molded plastic material that has stress properties that have not been modified by displacing the pin retention pawl radially outwardly during insertion of the shaft into the central aperture of the grommet, although the pin is positioned within the grommet with the inner retention tooth of the grommet located within the recess of the pin.