Question about the design of a hollow stem scaffold baseplate

[Guest John]

In AS/NZS 1576.2, it says "For tubular stem adjustable leg or adjustable baseplate, the minimum wall thickness shall be a nominal 5 mm."

I would like to know is it this 5mm including the depth of the thread.

Most of time, scaffolding are using solid stem. I don't know too much about hollow stem. But many scaffolder start using hollow. I want to learn that.

Normally the depth of the thread is 2mm. If this 2mm is including in the 5mm, I think it will be too thin. 

[Florian Dieterle]

Hi John

Our understanding is that a 5mm thick pipe is used and then a thread is cut. See below At-pac data. It gives an average wall thickness of around 4mm average  (36mm outside, 28mm inside diameter) which can be verified based on the weights. 

See dimensions of the Rd threads:

[Guest John]

Thank you, Florian. It helps a lot. 

3 hours ago, Florian Dieterle said:

Hi John

Our understanding is that a 5mm thick pipe is used and then a thread is cut. See below At-pac data. It gives an average wall thickness of around 4mm average  (36mm outside, 28mm inside diameter) which can be verified based on the weights. 

See dimensions of the Rd threads: