thread

[riccardo.r]

Hello.
I have to replicate a thread of a piece in my possession. I need to know what thread it is.
the counter indicates 18g 5/16. the outer diameter is 34,45mm.
Is this a thread withworth?
I also ask you how I can do it on solidworks, I don't find the word withworth. I have to do both the male and the female.
Thank you in advance.

 

[MassiVonWeizen]

Preface 1 5/16 g

I wonder how I can do it on solidworks, I can't find the word withworth. I have to do both the male and the female.

in the case of the male do the diameter and apply the cosmetic thread where you turn the caption manually
in the case of the hole do any gas hole and in the design indicate that it is thread withworth