Estimate bolt tightening torque from preload, nominal diameter and nut factor.
This is a general planning estimate. Check units and verify critical results independently.
Engineering results depend on inputs, assumptions and real-world conditions. Use this as a planning/checking value and verify critical work against manufacturer data, drawings or applicable standards. How our calculations work →
Estimate bolt tightening torque from preload, nominal diameter and nut factor. Enter the requested values, calculate the result, then compare it with drawings, catalogues, standards or manufacturer information relevant to the job.
Estimate bolt tightening torque from preload, nominal diameter and nut factor.
No. The formula provides an engineering estimate based on the inputs and assumptions shown. Real systems can include tolerances, friction, losses, material variation and regulatory requirements.