FAQ

What is the Pitch Diameter of External Thread?
Pitch Diameter of External Thread is the simple effective diameter of external screw thread, approximately halfway between the major and minor diameters. Pitch Diameter of External Thread is usually measured using the Millimeter for Length. Note that the value of Pitch Diameter of External Thread is always positive.
Can the Pitch Diameter of External Thread be negative?
No, the Pitch Diameter of External Thread, measured in Length cannot be negative.
What unit is used to measure Pitch Diameter of External Thread?
Pitch Diameter of External Thread is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Pitch Diameter of External Thread can be measured.
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