taper thread

taper thread

A screw thread which is formed on a cone or the frustum of a cone; used on some types of fasteners; used in plumbing on pipes and fittings, 1 to ensure a gastight joint.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
What is the angle of a National Pipe Taper thread in degrees, minutes, and seconds?