Other - Bolts Welds - Class 10.9 Countersunk bolts - 4B. Bolt resistances - Preloaded in tension-460

Diameter of boltTensile stress areaTension resistanceBolts in tension
Min. thickness for punching shear
dAsFt,Rdtmin
mmmm2kNmm
1615779.13.6
202451234.7
243531785.3
305612836.9

The minimum thickness is such that the design punching shear resistance Bp,Rd is equal to the design tension resistance Ft,Rd