How long are the threads on a 1" gas pipe?

The correct length of the threads on a 1" gas pipe is 7/8" long. This specific measurement is important for ensuring proper connection and sealing when joining pipe sections together. The standard threading for gas pipes adheres to specific regulations that ensure compatibility and safety in gas installations. The 7/8" length allows for adequate engagement and support when making connections, reducing the risk of leaks and ensuring that the fittings can be securely fastened.

Other lengths mentioned, such as 5/8", 1", and 1 1/4", do not align with the specifications for 1" gas pipes and could lead to improper fittings or connections that are either too loose or unable to form a proper seal. Thus, knowing the correct threading length is essential for any plumbing work involving gas pipes to comply with safety standards and regulations.