Hello
Its me - neighbour. Actually Im new here and I came to ask a question. Im not a technical drawer so doing CAD drawings is not for me BUT I study mechanical engineering - just not this part for which the forum is.

My question is if anyone has any experiences with either drawing or recognizing the technical 2D ( ! ) drawing with bolt/screw? The problem is that I have three technical 2D drawings (not yet attached to this post), all from the same bolt type but what I need to do is to recognize what does each dimension mean. Of course dimensions like diameter and length of shank, diameter and height of head, angle of thread, thread pitch (and perhaps something else too) are easy to recognize and ''name'' them but some of definited dimensions are pretty hard to name and I have no idea what they mean but I have to define them.
It wouldn't be much of work - together would be about max 10 dimensions (unknown to me) to name - so what do they mean.

So if anyone is willing to take 5 or max 10 minutes, I would appreciate. I have almost any instant messenger. I can also install requested one.

Thanks and hope someone can respond.