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60° Thread Calculator Formula based: 2A and 3A external threads

Enter size, threads per inch and class. The 2A/3A diameters, wire size and measurement over wires are computed from the ANSI formulas and shown on the drawing; every result is listed below.

major pitch dia minor P 60° M external thread, section through the axis

Swipe sideways to see the whole drawing.

MAJMax major diameter—
PDMax pitch diameter—
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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