1. What Is Thread Angle Calculation?

The thread angle of a screw is the included angle between the thread flanks, measured in a plane containing the thread axis. This calculation helps determine the optimal wire diameter for accurate thread measurement.

2. How Does The Calculator Work?

The calculator uses the thread angle formula:

Where:

• \( \theta \) — Thread angle (radians)
• \( G_m \) — Wire diameter metric thread (meters)
• \( P \) — Screw pitch (meters)

Explanation: The formula calculates the thread angle using inverse trigonometric functions based on the relationship between wire diameter and screw pitch.

3. Importance Of Thread Angle Measurement

Details: Accurate thread angle measurement is crucial for proper thread fitting, manufacturing precision, and ensuring mechanical components function correctly together.

4. Using The Calculator

Tips: Enter wire diameter and screw pitch in meters. Both values must be positive numbers. The ratio 2*Gm/P must be ≥1 or ≤-1 for valid results.

5. Frequently Asked Questions (FAQ)

Q1: What is arcsec function?
A: Arcsec is the inverse trigonometric secant function, calculated as arcsec(x) = acos(1/x).

Q2: Why is thread angle important in manufacturing?
A: Thread angle determines how well threaded components fit together and affects the strength and durability of mechanical connections.

Q3: What are typical thread angle values?
A: Common thread angles include 60° for metric threads and 55° for Whitworth threads, though specific applications may vary.

Q4: Can this calculator handle different units?
A: The calculator requires inputs in meters. Convert other units to meters before calculation for accurate results.

Q5: What if I get an invalid result?
A: Ensure that the ratio 2*Gm/P is ≥1 or ≤-1. Invalid results occur when this ratio falls between -1 and 1 (excluding -1 and 1).