A pin and grommet fastener for mounting in an aperture of a first component and receiving a pin extending from a second component to couple the first and second components together comprising: a pin including a pin retention groove or protrusion; a grommet comprising: an inner housing defining a pin retaining receptacle elongated in an X-direction with entry ramps extending parallel to the X-direction, a cooperating pin retention groove or protrusion operable to retain the pin retention groove or protrusion, and an inner housing flange having an inner housing retaining surface; an outer housing defining an interior with an outer housing flange having a cooperating inner housing retaining surface, and a plurality of resilient retention wings positioned to retain the first component against the outer housing flange when the outer housing is mounted within the aperture of the first component; a plurality of centering blades extending into the interior and between the inner and outer housings (36; 38) and extending to locate the pin retaining receptacle of the inner housing in a central position within the interior of the outer housing in a Y-direction prior to insertion of the pin into the pin retaining receptacle, wherein the centering blades are movable in the Y-direction to permit the pin retaining receptacle of the inner housing to move to a non-central position relative to the outer housing in the Y-direction as a result of the inner housing moving the centering blades during insertion of the pin into the pin retaining receptacle. a pin including a pin retention groove or protrusion; a grommet comprising: an inner housing defining a pin retaining receptacle elongated in an X-direction with entry ramps extending parallel to the X-direction, a cooperating pin retention groove or protrusion operable to retain the pin retention groove or protrusion, and an inner housing flange having an inner housing retaining surface; an outer housing defining an interior with an outer housing flange having a cooperating inner housing retaining surface, and a plurality of resilient retention wings positioned to retain the first component against the outer housing flange when the outer housing is mounted within the aperture of the first component; a plurality of centering blades extending into the interior and between the inner and outer housings (36; 38) and extending to locate the pin retaining receptacle of the inner housing in a central position within the interior of the outer housing in a Y-direction prior to insertion of the pin into the pin retaining receptacle, wherein the centering blades are movable in the Y-direction to permit the pin retaining receptacle of the inner housing to move to a non-central position relative to the outer housing in the Y-direction as a result of the inner housing moving the centering blades during insertion of the pin into the pin retaining receptacle. an inner housing defining a pin retaining receptacle elongated in an X-direction with entry ramps extending parallel to the X-direction, a cooperating pin retention groove or protrusion operable to retain the pin retention groove or protrusion, and an inner housing flange having an inner housing retaining surface; an outer housing defining an interior with an outer housing flange having a cooperating inner housing retaining surface, and a plurality of resilient retention wings positioned to retain the first component against the outer housing flange when the outer housing is mounted within the aperture of the first component; a plurality of centering blades extending into the interior and between the inner and outer housings (36; 38) and extending to locate the pin retaining receptacle of the inner housing in a central position within the interior of the outer housing in a Y-direction prior to insertion of the pin into the pin retaining receptacle, wherein the centering blades are movable in the Y-direction to permit the pin retaining receptacle of the inner housing to move to a non-central position relative to the outer housing in the Y-direction as a result of the inner housing moving the centering blades during insertion of the pin into the pin retaining receptacle.