Answer / Vishwajeet Kumar

To identify various hose fitting threads, you can refer to standardized systems such as National Pipe Thread (NPT), British Standard (BS), or Metric thread. Each system has different pitch and thread depth specifications. A simple way to identify NPT is by counting the number of threads per inch (TPI) which is 16 for common sizes. For BS, it's 40 TPI, and for Metric, it varies based on the size but typically ranges from 25 to 40 TPI.

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