1. What is Pitch of Screw?

The pitch of a screw is the distance between screw threads and is commonly used with inch sized products and specified as threads per inch. It represents the linear distance between corresponding points on adjacent threads.

2. How Does the Calculator Work?

The calculator uses the pitch formula:

Where:

• \( P_s \) — Pitch (m)
• \( L \) — Lead of Screw (m)
• \( n \) — Number of Threads

Explanation: The pitch is calculated by dividing the lead of the screw (linear travel per revolution) by the total number of threads.

3. Importance of Pitch Calculation

Details: Accurate pitch calculation is crucial for mechanical design, manufacturing processes, and ensuring proper thread engagement in fastening applications. It affects the mechanical advantage and precision of screw mechanisms.

4. Using the Calculator

Tips: Enter lead of screw in meters and number of threads. Both values must be positive numbers (lead > 0, threads ≥ 1).

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between pitch and lead?
A: Pitch is the distance between threads, while lead is the linear distance the screw travels in one complete revolution.

Q2: How does pitch affect mechanical advantage?
A: Smaller pitch provides greater mechanical advantage as it requires more turns to move the same distance, distributing force over more rotations.

Q3: What are common pitch measurements?
A: Pitch can be measured in millimeters per thread (metric) or threads per inch (imperial systems).

Q4: How does pitch affect thread strength?
A: Finer pitches (more threads per unit length) generally provide better holding strength but may be more susceptible to stripping.

Q5: When should pitch be measured precisely?
A: Precision pitch measurement is essential in high-tolerance applications like aerospace, automotive, and precision instrumentation manufacturing.