How to Calculate Bolt Force
- 1). Measure the diameter of the bolt using the ruler. This measurement includes the outside edge of the threads.
- 2). Find your desired bolt load in pounds. This number is dependent on the material of the bolt and thread design. It is most commonly a given value and is considered the "clamping force," according to EngineersEdge.
- 3). Multiply the diameter by the axial load, then multiply that product by 0.2. This calculation will give you the bolt torque.
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