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ACME External Thread Calculator General purpose classes 2G, 3G and 4G

Enter size, threads per inch and class. Diameters, wire size and the measurement over wires appear in red on the drawing; every result, including tool and relief figures, is listed below.

major pitch dia minor P 14.5° per flank, 29° included M external thread, section through the axis

Swipe sideways to see the whole drawing.

MAJMajor diameter (max)—
PDPitch diameter (max)—
MINMinor diameter (max)—
WWire size used—
MMax M over wires—
MMin M over wires—
PPitch (1 / TPI)—

Press Calculate to show the results on the drawing and in the table below.

All results

Press Calculate to fill this table.

Every value the calculator produces, in the original order. Tinted, bold rows are the key results also shown on the drawing.

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