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On the Following Tap Size 1/2 In. -13 UNC-1A.identify Thread Meaning for 1A? D. Class of Thread E. External C. Coarse or Fine A. Major

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On the following tap size 1/2 in. -13 UNC-1A.identify thread meaning for 1A? d. Class of thread e. External C. Coarse or Fine a. Major diameter b. Number of threads per inch of length f. Internal

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Ricardo maestro · Tutor durante 5 años
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Respuesta

The tap size "1/2 in. - 13 UNC-1A" provides specific information about the thread characteristics. Let's break down each component:a. **Major diameter**: The major diameter is the nominal size of the thread, which in this case is 1/2 inch.b. **Number of threads per inch of length**: This is indicated by the number "13," meaning there are 13 threads per inch.c. **Coarse or Fine**: The designation "UNC" stands for Unified National Coarse, indicating that the thread is coarse.d. **Class of thread**: The "1A" indicates the class of fit for the external thread. Class 1A is a loose fit, allowing for easy assembly and disassembly.e. **External**: The "A" in "1A" signifies that this is an external thread.f. **Internal**: Since "1A" refers to an external thread, it does not apply to internal threads. Internal threads would be designated with a "B" (e.g., 1B, 2B, 3B).