Is EMT allowed to be threaded?

The reasoning behind selecting the answer that EMT (Electrical Metallic Tubing) cannot be threaded is grounded in the specific standards and codes governing electrical installations. EMT is designed to be a protective conduit for electrical wiring and is primarily intended to provide a means of protection from physical damage while facilitating a pathway for wires.

Threading EMT could compromise its ability to maintain structural integrity and the effectiveness of its conduit functions. The design of EMT is smooth and does not have the rigidity or the material characteristics needed to hold threads effectively. Additionally, threading could expose the interior of the conduit to corrosion or damage, thereby creating potential safety hazards. In essence, the physical properties of EMT and its intended purpose dictate that it should not be altered by threading, ensuring compliance with safety and performance standards.

This helps illustrate why the alternatives imply a flexibility that goes against the fundamental specifications of EMT, as threading is not considered acceptable practice for this type of conduit.