![Height of Fundamental Triangle (Thread) 2 Height of Fundamental Triangle of a thread profile](http://www.machiningdoctor.com/wp-content/uploads/2023/05/Height-of-Fundamental-Triangle.png)
- The height of the fundamental triangle of the thread (also called the height of sharp “V”) is the distance measured between the apex and the base of the fundamental triangle.
- It is commonly denoted with H.
- It is an imaginary dimension that is used to calculate other properties of a thread profile. (Mainly the Thread Height (h).