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The Ulitmate ACME Thread Resource: Basic Dimensions, Classes, Tolerances, Formulas, Charts, and Explanations.
1/4 - 16 ACME : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more.
The following table defines recommended industry standard sizes for External ACME General Purpose Threads per American National Standard ASME/ANSI B1.5.
ACME Thread Table – ANSI / ASME Norms. In the table below, you will find the required dimensions for designing your ACME threaded components. The parameters d, d2, D2, Pitch, and d1 locate in the drawing on the right side of the table. You can also get a pre-finished 3D model of your desired thread size by clicking the “3D-Modell” button ...
ASME B1.5-1997, Acme Screw Threads. Standard sizes for External ACME General Purpose Threads per American Standard ASME/ANSI B1.5. Major, minor and pitch diameter are given in the table for 2G, 3G and 4G tolerance classes.
This Acme Thread calculator can be used for calculating the various dimensions of a Standard Acme thread. There's also a link to our Universal Convertor.
This ACME Thread General Purpose Design Calculator will determine the three classes of General Purpose, 2G, 3G, and 4G, for the external and internal threads.
