McMaster 1841T23 Thin-Wall Steel Conduit Zinc Compression Adapter, 1 Size with Grommet and O-Ring

With a thinner wall, this conduit is a lighter alternative to IMC and RMC. The most common choice for indoor walls and ceilings, it shields wiring from scrapes and bumps. EMT can dent or crush from impact, however, so it should be routed away from high-traffic areas where carts and vehicles pass through.

Zinc Alloy — A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.