Buying a foreclosed house can mean you get a great deal, but there are some things to watch out for, too.
10 most extreme places on Earth. Pitch diameter is a term used to take measurements of the diameter of a gear or a screw using pitch points. Pitch points on a gear could be found if a straight line were drawn up from two of the gear's teeth located side by side and the two lines were connected by a curve.
Metric threads use a different system for pitch diameter tolerances. And, this system is a bit more complicated than that used for inch threads. The tolerance class consists of a tolerance grade and tolerance position. The tolerance grade is specified by a number that controls the pitch diameter (and crest diameter) tolerances.