1. What is Pitch of Threads?

Pitch of Threads is the distance between two adjacent threads on a screw, bolt or nut. It is a fundamental parameter in thread design and manufacturing that determines how closely spaced the threads are.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( p \) — Pitch of Threads (m)
• \( r \) — Radius of Root of Thread (m)

Explanation: This formula calculates the pitch of screw threads based on the radius at the root of the thread, using a constant conversion factor of 0.137329.

3. Importance of Pitch Calculation

Details: Accurate pitch calculation is crucial for proper thread design, manufacturing precision, and ensuring proper fit and function of threaded components in mechanical assemblies.

4. Using the Calculator

Tips: Enter the radius of root of thread in meters. The value must be positive and greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the radius of root of thread?
A: The Radius of Root of Thread is defined as the radius of the circle touching the root of the screw threads and its center is at the bolt center.

Q2: Why is pitch important in thread design?
A: Pitch determines the thread spacing which affects the mechanical advantage, strength, and engagement characteristics of threaded fasteners.

Q3: What units should be used for input?
A: The calculator uses meters for both input and output. Convert from other units if necessary before calculation.

Q4: Are there limitations to this formula?
A: This formula provides a specific relationship between root radius and pitch. Different thread standards may have slightly different relationships.

Q5: Can this calculator be used for all thread types?
A: This calculator uses a general formula. For specific thread standards (ISO, UNC, UNF, etc.), consult the appropriate standard specifications.