Unused RMC Threads in a Hub

[jar546]

At what point do you question whether or not the pipe is adequately connected?

 

[e hilton]

I think 500.8(e) calls for it to be wrench tight. Thats a little ambiguous, but whats in the picture is far from hand tight.

 

[e hilton]

And the screws look like self-tapping, not machine bolts and nuts.

 

[jar546]

I think 500.8(e) calls for it to be wrench tight. Thats a little ambiguous, but whats in the picture is far from hand tight.

If you click on the photo and zoom in, you can see the missing corrosion protection and exposed bare metal, albeit a bit rusted already. This is a new ATS installation using the existing RMC.

 

[e hilton]

Is that corrosion protection ... or flaking paint?

 

[chris kennedy]

The hub is attached to the enclosure with thread forming 1/4 20’s.

 

[SCBO1]

I think you got about two threads, what's permitted? The photo looks like black pipe instead of galvinized.

And the screws look like self-tapping, not machine bolts and nuts.

I have seen hubs with slot-headed screws in the package before, shouldn't have any points on the ends.