Is unf and bsp threads are same?

UNF (Unified National Fine) and BSP (British Standard Pipe) threads are not the same. UNF threads are a type of metric thread with a finer pitch designed for high tensile strength, primarily used in the United States. In contrast, BSP threads are used predominantly in British and Commonwealth countries for piping applications and have a different thread profile and pitch. Therefore, they are not interchangeable and serve different purposes in engineering and Plumbing applications.