Thread Height Calculator

Formula

To calculate the Thread Height (TH):

\[ TH = \frac{P}{S} \]

Where:

\( TH \) is the thread height (mm)
\( P \) is the pitch of the thread (mm)
\( S \) is the number of starts of the thread

What is Thread Height?

Thread height is the distance between the crest of one thread and the root of the next thread, measured perpendicular to the axis of the thread. It is a critical dimension in the design and function of threaded fasteners, affecting the strength and fit of the connection. Understanding thread height is essential for ensuring compatibility between threaded parts and for achieving the desired level of performance in an assembly.

Example Calculation

Let's assume the following values:

Pitch of the Thread \( P \) = 2 mm
Number of Starts \( S \) = 4

Step 1: Use the thread height formula:

\[ TH = \frac{P}{S} = \frac{2}{4} = 0.5 \text{ mm} \]

The Thread Height is 0.5 mm.