Lensed machined, medium sized, flanged fitting with threaded body and lock-nut for retaining fitting in position in up to 5/8" panel thickness. Lensed with optically ground glass for variable spot or flood beam. Internal threading or set screw provided to retain glass or plastic fiber end. Applications: Case and cabinet lighting, elevators, refrigerator cases, wash down applications, and architectural access lighting where access behind panel available during mounting. Specify acceptance core diameter, lens, and finish.