This bezel nut fits the small windshield wiper switch on most Pre-A through 356B T-5 models.

Often, original bezels have been damaged by tightening with improper tools. Preferred tightening method is to reverse-turn the switch by half a turn, apply the nut and hold it while turning the switch forward to lock the nut in place; final tightening can be done by carefully driving a small punch at an angle in the four holes.