Drawing Threaded Holes: Correct Representation?

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SUMMARY

The discussion focuses on the correct representation of threaded holes in technical drawings, emphasizing the use of specific line types as outlined in the alphabet of lines. Participants agree that hidden lines should be avoided to prevent confusion, recommending the use of multiple views (front, side, and top) to accurately depict features. The importance of dimensions is acknowledged, though not included in the drawings for clarity in the discussion. CAD tools are preferred for creating detailed representations, while hand-drawn methods may utilize hidden lines for certain features.

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  • Understanding of technical drawing conventions
  • Familiarity with the alphabet of lines in drafting
  • Knowledge of CAD software for technical illustrations
  • Basic principles of dimensioning in engineering drawings
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  • Research the alphabet of lines used in technical drawings
  • Learn how to create section views in CAD software
  • Explore best practices for dimensioning in engineering drawings
  • Study the representation of threaded holes in technical illustrations
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Engineers, technical illustrators, and CAD designers who need to accurately represent threaded holes and other features in technical drawings.

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I'm trying to draw the side-view and I'm having a bit of trouble. Is what I drew correct, or is there some kind of special representation for threaded holes?
 
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Yes, there is a special type of line used to fill in the area of a threaded hole. Look it up in the alphabet of lines. Everything you have so far is fine, you just need more.
 
What else is needed? I know there's a hole at the top, but it'd be to confusing if I tried to include that in the side view as hidden lines.
I also know dimensions should be included, but I'm omitting them for the purpose of this post. Thanks!
Edit:
Btw, what do you mean by the alphabet of lines? I tried looking it up, but is it some sort of chart or table?
 
In general avoid hidden lines wherever possible. It's always preferable to do a another view to show the feature properly.

In this case I wouldn't use any hidden lines. I'd do a front view, side view on the other side and a top view. The two holes at the front can be called out and positioned from the top view as through holes. Same with the two on the front face.

Depending on the geometry and the importance of the through hole on the diagonal face, I'd do that as a section view, and the same with the large hole on the top.

I'd do that because I use CAD. If I were drawing by hand I wouldn't do the section views, but show the hole on the diagonal as hidden lines.

You can show a threaded hole by a concentric arc that goes around the hole in question, http://media.photobucket.com/image/threaded hole/S_PK/019cdcdd.jpg
 

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