How many threads does a 1" gas pipe have?

In the context of gas piping, the number of threads on a 1-inch gas pipe is determined by the standards for pipe threads, specifically the National Pipe Thread (NPT) standard. For a 1-inch NPT gas pipe, there are typically 11.5 threads per inch, which translates into a standard configuration of approximately 10 full threads on the pipe's end.

Thus, the choice indicating 10 threads accurately reflects the typical expectation for a 1-inch gas pipe fitting, which is critical for ensuring proper sealing and fitting when connecting pipes. Understanding this standard helps ensure that installations comply with plumbing codes and safety regulations, ultimately contributing to safe and effective gas delivery systems.