Which of the following connecting units are used on pipe hangers?

• A. Chains and hooks
• B. Nails
• C. Eye Bolts, Turnbuckles, Threaded Rods
• D. Clamps and wedges

Answer: (C)

Pipe hangers rely on hardware that provides a secure, adjustable connection between the pipe and the building structure. Eye bolts, turnbuckles, and threaded rods fit this role well: eye bolts give a solid attachment point for hangers, threaded rods form the main vertical support from the structure, and turnbuckles allow precise length and tension adjustments to keep the pipe level and properly spaced. Nails aren’t designed to bear the loads of piping and aren’t adjustable once driven, so they’re not suitable for hangers. Clamps and wedges serve different purposes for securing pipes in other contexts, while chains and hooks can be used in some temporary or lighter-duty setups but don’t offer the reliable, adjustable support that threaded rod, eye bolts, and turnbuckles provide. That combination is the standard for pipe hangers, which is why it’s the best answer.