Determining the size and type of screw threads on a pipe is a crucial task in plumbing, engineering, and various industrial applications. It involves accurately identifying the outer diameter of the pipe and the thread pitch, which is the distance between threads. For instance, a measurement might reveal a pipe with a 1-inch nominal size and a thread pitch of 11.5 threads per inch, indicating a specific type of tapered pipe thread commonly used in plumbing systems.
Accurate thread identification is essential for ensuring proper connections and preventing leaks. Using mismatched threads can lead to joint failure, resulting in costly repairs and potential safety hazards. Historically, reliance on physical thread gauges and comparison charts was the norm, but advancements have introduced digital calipers and thread identification apps, streamlining the process and increasing precision.