An adjuster (12, 112) for adjustable automotive lamps, the adjuster comprising: a base screw (20, 120) including a threaded shaft; and a retainer (18, 118) connected to the threaded shaft, the retainer comprising: a semicircular sidewall (40, 140), partially surrounding at least a portion of the threaded shaft, the semicircular sidewall having interior threads that correlate to the threads of the threaded shaft, and the semicircular sidewall defining a clutching opening that permits expansion of the semicircular sidewall when the threaded shaft slips with respect to the interior threads; a plurality of retainer snap fingers (32, 132) located proximate to a distal end of the retainer (18, 118) and configured to mate to a lamp mating portion (16, 116) of the adjustable automotive lamp; and a plurality of retainer spring fingers (34, 134) positioned within such proximity to the plurality of retainer snap fingers (32, 132) as to further secure the lamp mating portion (16, 116) against substantial sliding movement along the adjuster after the plurality of retainer snap fingers mates with the lamp mating portion; characterised in that the retainer snap fingers (32, 132) and retainer spring fingers (34, 134) are configured to flex relative to the semicircular sidewall (40, 140) as the retainer snap fingers (32, 132) and the retainer spring fingers (34, 134) mate with the lamp mating portion (16, 116). a base screw (20, 120) including a threaded shaft; and a retainer (18, 118) connected to the threaded shaft, the retainer comprising: a semicircular sidewall (40, 140), partially surrounding at least a portion of the threaded shaft, the semicircular sidewall having interior threads that correlate to the threads of the threaded shaft, and the semicircular sidewall defining a clutching opening that permits expansion of the semicircular sidewall when the threaded shaft slips with respect to the interior threads; a plurality of retainer snap fingers (32, 132) located proximate to a distal end of the retainer (18, 118) and configured to mate to a lamp mating portion (16, 116) of the adjustable automotive lamp; and a plurality of retainer spring fingers (34, 134) positioned within such proximity to the plurality of retainer snap fingers (32, 132) as to further secure the lamp mating portion (16, 116) against substantial sliding movement along the adjuster after the plurality of retainer snap fingers mates with the lamp mating portion; characterised in that the retainer snap fingers (32, 132) and retainer spring fingers (34, 134) are configured to flex relative to the semicircular sidewall (40, 140) as the retainer snap fingers (32, 132) and the retainer spring fingers (34, 134) mate with the lamp mating portion (16, 116). a semicircular sidewall (40, 140), partially surrounding at least a portion of the threaded shaft, the semicircular sidewall having interior threads that correlate to the threads of the threaded shaft, and the semicircular sidewall defining a clutching opening that permits expansion of the semicircular sidewall when the threaded shaft slips with respect to the interior threads; a plurality of retainer snap fingers (32, 132) located proximate to a distal end of the retainer (18, 118) and configured to mate to a lamp mating portion (16, 116) of the adjustable automotive lamp; and a plurality of retainer spring fingers (34, 134) positioned within such proximity to the plurality of retainer snap fingers (32, 132) as to further secure the lamp mating portion (16, 116) against substantial sliding movement along the adjuster after the plurality of retainer snap fingers mates with the lamp mating portion; characterised in that the retainer snap fingers (32, 132) and retainer spring fingers (34, 134) are configured to flex relative to the semicircular sidewall (40, 140) as the retainer snap fingers (32, 132) and the retainer spring fingers (34, 134) mate with the lamp mating portion (16, 116).