A numerical-analytical method of calculating the distribution of effort bolts of metal-composite joints according to which the lining compound approximated by two-dimensional models of the finite element method (FEM), and the compliance of digital connections (bolts, rivets) is described by analytic expressions. The calculated and experimental study on the method of calculation examples of two-, three- and four-row bolted joints in the performance of three-dimensional modeling by FEM and the experimental data obtained in the field samples.