National Pipe Thread is a U.S. standard for tapered (NPT) or straight (NPS) threads used to join pipes and fittings. ANSI/ASME standard B1.20.1 covers threads of 60-degree form with flat crests and roots in sizes from Â¹âââ inch to 24 inch Nominal Pipe Size.
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Schlage was acquired by Ingersoll Rand, a Fortune 150 manufacturer of industrial, mining and construction equipment. As a result of the acquisition, Schlage became part of the Ingersoll Rand Door Hardware Group.