Bolt Tensile & Shear Strength Calculator

Calculate tensile stress area As (mm²), allowable axial tensile force Ft (kN), and allowable shear force Fv (kN) based on ISO 898-1 property classes (4.6 to 12.9 and Stainless A2-70).

Static load: K = 1.3–1.5; Dynamic / Shock: K = 2.0–3.0

Results

Tensile Strength Limit σb— MPa
Yield Strength Limit σs— MPa
Stress Cross-Section Area As— mm²
Allowable Tensile Force Ft— kN (— lbf)
Allowable Shear Force Fv— kN (— lbf)
Combined Allowable Tensile (N Bolts)— kN

Formulas

Allowable Tensile Stress: [σ] = σs / K

Allowable Tensile Force: Ft = As × [σ] (kN)

Allowable Shear Force: Fv = As × (0.6 × [σ])