A technical drawing isue. Showing screw values in paper.

I have atached a picture which shows my problem. What is the major, minor and pitch values on original technical drawing?

1 Answer

Major diameter = Screw # × 0.013" + 0.060".
Pitch =Threads per inch

http://www.efunda.com/designstandards/screws/screws_intro.cfm

You have the correct understanding but for pitch 60 threads per inch standard form