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Lead angle

Lead angle Per ASME B1.7-2006 Definitions [ back to main page ]

Lead angle: on a straight thread, the lead angle is the angle made by the helix of the thread at the pitch line with a plane perpendicular to the axis.  On a taper thread, the lead angle at a given position is the angle made by the conical spiral of the thread at the pitch line with the plane perpendicular to the axis.


Original Posting: 3/20/2012
Last Revision:
Error corrections in, or comments about, the above data can be sent to: office@gagecrib.com

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