gemini says """Tensile load capacity is calculated by multiplying the tensile strength of the material by the cross-sectional area of the bolt. 5/8 inch mild steel bolt: Tensile Load = 400 MPa * 197.7 mm² Tensile Load ≈ 79080 N (Newtons) 10mm grade 12.9 bolt: Tensile Load = 1220 MPa * 78.54 mm² Tensile Load ≈ 95819 N"""