technical drawing exercise aid

[DoctorBomber90]

What do you mean by "fascia"?

I'm sorry. length of the threaded part. Perhaps it is a term more from workshop (I don't know).

• by "fascia" I mean the length e and length b (for the image below);

• other example, could be the quota a.

in the drawing I see that body 1, it is not indicated how long the threaded part is (perhaps you can get it on a simple mathematical account: 56 mm (it seems to be light-height of the cylindrical part of the body 1)-14 mm(distance from the upper shouldering of the length of the gola uni 5710).
I could also take this threaded length equal to that of the driving cap 4.

 

[MassiVonWeizen]

if there is an exhaust throat, present in both details, it means that the thread is complete and not for a partial length; inter alia if a thread is partial you must draw a line perpendicular to the axis that defines the end that in this case is not present

 

[MassiVonWeizen]

In addition to the design you can also see the thin line, in green in this case, which represents the ridge of the thread.