Accessory Stem 1/2NPSM 18 in (3405WZ92)
Fixture Mounting Stems - 12" (1/2 NPSM thd. Stems, 3/4 dia. overall). All stems made of corrosion resistant aluminum alloy (except BR and BBR) with baked thermoset powder coating to match fixtures. Used with: In-ground support stakes (low voltage only) and Surface mounting flange (low or line voltage)