What is the most common brass pipe joint?

The most common brass pipe joint is threaded. Threaded joints allow for easy assembly and disassembly of pipes, which is advantageous in applications that may require maintenance or adjustments. This method involves screwing the male threads of one pipe into the female threads of another, creating a secure connection. The threads provide a mechanical interlock, reinforcing the strength of the joint while facilitating a watertight seal when appropriately joined.

In many plumbing and piping systems, threaded brass joints are preferred due to their durability, resistance to corrosion, and compatibility with various fittings and valves. This ease of use and reliability makes threaded connections a widely accepted standard in the industry, especially where pipe fittings are necessary to accommodate changes in pipe direction or branching.

The other options, while valid methods of joining pipes, do not match the prevalence and practicality of the threaded joint in brass applications.