What this calculator does
The tensile stress area is used for bolt tensile stress, proof load, and preload calculations and links thread geometry to the existing bolt tools.
Threads · load-carrying section
ISO metric thread tensile stress area
Calculate tensile stress area Aₛ and associated basic diameters from nominal diameter and pitch.
ISO724
02
Results
ƒ(x)
Set the inputs and run the calculation.
What still needs checking
Thread-root concentration, tolerances, load distribution, fatigue, and material strength are outside this geometry-only calculation.