Left handed driver's side shoulder belt anchor plate may be upside down in lock pillar so that the unthreaded slot of the plate aligned with the hole in the lock pillar. This resulted in the anchor bolt being driven into the slot instead of the threaded hole of the anchor plate. Consequence of defect: In a vehicle crash, belt anchor bolt may pull loose from anchor plate, thus failing to comply with FMVSS 210, seat belt assembly anchorages, and increases likelihood of injury to occupant.