1. What is Torque Value Calculation For Bolts?

Torque Value Calculation For Bolts is a method to determine the appropriate tightening torque for bolts and fasteners using the formula T = K × F × D, where T is torque, K is a dimensionless factor, F is the force, and D is the diameter.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( K \) — Dimensionless factor (typically 0.2 for dry, 0.15 for lubricated)
• \( F \) — Force (N)
• \( D \) — Diameter (m)

Explanation: The formula calculates the rotational force required to properly tighten a bolt, accounting for friction and other factors through the K value.

3. Importance of Torque Calculation

Details: Proper torque calculation is essential for ensuring bolt integrity, preventing under-tightening (which can lead to loosening) and over-tightening (which can cause bolt failure or damage to components).

4. Using the Calculator

Tips: Enter the K factor (typically 0.15-0.25), force in Newtons, and diameter in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical K value for bolts?
A: K values typically range from 0.15-0.25, with 0.2 being common for dry threads and 0.15 for lubricated threads.

Q2: Why is proper torque important?
A: Proper torque ensures joint integrity, prevents leaks, maintains clamping force, and avoids damage to threads or components.

Q3: How does lubrication affect torque?
A: Lubrication reduces friction, requiring less torque to achieve the same clamping force. This is accounted for by using a lower K value.

Q4: What units should be used?
A: Force should be in Newtons (N), diameter in meters (m), and the result will be in Newton-meters (Nm).

Q5: Are there industry standards for torque values?
A: Yes, various industries have specific torque specifications based on bolt size, material, and application requirements.