Bolt Torque and Preload
Bolt preload is detrmined versus bolt toque with friction considerations. Intended for preliminary sizing and sensitivity analysis; validate independently for safety-critical use.
Details (inputs, outputs, assumptions) Read once
Model summary
Inputs: Bolt class and size. Thread coefficent of friction range. Nut coefficient of friction range.
Outputs: Bolt details. Bolt preload range. Safety factors on stress.l
Preliminary estimates only. Verify independently for safety-critical applications. See Terms.
Bolt Torque and Preload
SAE J429
ASTM
ISO METRIC
