02-06-2007, 07:14 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,591
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the 3/8" npt has about a 1/2" O.D. - regular 1/2" npt is 7/8" diameter. the small diameter fixture tube is a 1/8" straight pipe thread. you can buy these in hardware stores as fixture parts. the hickeys can be had with all sorts of pipe threads and fixture studs.
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