RMC to gutter

[Greg1707]

I am installing RMC under ground. I am coming up to a sheet metal gutter on the side of the building. I will drill a hole in the bottom of the gutter. How do I connect threaded RMC to the gutter?

 

[infinity]

There are several ways. The cheapest method, one standard locknut, one bonding locknut and a plastic bushing.

 

[tkb]

Why the bonding LN?

 

[infinity]

Why the bonding LN?

You might be right, I immediately thought of a service but the OP made no mention of this being a service raceway. Therefore, I rescind my bonding locknut idea until we know what kind of raceway we're dealing with. :grin:

 

[Greg1707]

This is not for a service. It is a circuit run under ground to a vending machine. I considered the two lock nut approach but questioned whether that was appropriate for a wet location.